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Sample records for endcap ee dee

  1. Dee-Mack Intermediate School

    ERIC Educational Resources Information Center

    Northwest Evaluation Association, 2012

    2012-01-01

    Frank Reliford, the Principal at Dee-Mack Intermediate since 2005, is familiar to almost every child in the community. 260 Students attend Reliford's school, and their status is a point of pride: Dee-Mack Intermediate is consistently one of the highest performing schools in the state. The change in student performance correlates to the…

  2. Cooled turbine vane with endcaps

    DOEpatents

    Cunha, Frank J.; Schiavo, Jr., Anthony L.; Nordlund, Raymond Scott; Malow, Thomas; McKinley, Barry L.

    2002-01-01

    A turbine vane assembly which includes an outer endcap having a plurality of generally straight passages and passage segments therethrough, an inner endcap having a plurality of passages and passage segments therethrough, and a vane assembly having an outer shroud, an airfoil body, and an inner shroud. The outer shroud, airfoil body and inner shroud each have a plurality of generally straight passages and passage segments therethrough as well. The outer endcap is coupled to the outer shroud so that outer endcap passages and said outer shroud passages form a fluid circuit. The inner endcap is coupled to the inner shroud so that the inner end cap passages and the inner shroud passages from a fluid circuit. Passages in the vane casting are in fluid communication with both the outer shroud passages and the inner shroud passages. Passages in the outer endcap may be coupled to a cooling system that supplies a coolant and takes away the heated exhaust.

  3. 33 CFR 117.933 - Pee Dee River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Pee Dee River. 117.933 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements South Carolina § 117.933 Pee Dee River. The draws of the Seaboard System Railroad bridges, mile 72.6 near Poston and mile 107.2 near Pee Dee, need not be...

  4. 33 CFR 117.933 - Pee Dee River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Pee Dee River. 117.933 Section 117.933 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements South Carolina § 117.933 Pee Dee River. The draws of...

  5. Becoming a Footnote to History: A Conversation with Morris Dees.

    ERIC Educational Resources Information Center

    Maldonado, Nancy L.; Lacey, Candace H.

    For over 30 years, Morris Dees and his colleagues at the Southern Poverty Law Center (SPLC) have worked to combat domestic fear and hate through litigation and education. In a 1998 interview, Dees shared his beliefs about how individuals and groups can make a positive difference, as well as the role history plays in identifying heroes. This paper…

  6. Ceramic pressure housing with metal endcaps

    DOEpatents

    Downing, J.P. Jr.; DeRoos, B.G.; Hackman, D.J.

    1995-06-27

    A housing is disclosed for the containment of instrumentation in a high pressure fluid environment that consists of a metallic endcap and ceramic cylinder bonded together. The improvement comprises a structure which results in the improved sealing of said housing as the fluid pressure increases. The cylindrical ceramic tube and endcap are dimensioned such that mechanical failure does not occur when exposed to the desired external operating pressures which includes up to 36,000 feet of water. The housing is designed to withstand the external operating pressures without being subject to mechanical failure or excessive deformation which results in the loss of pressure housing integrity via cracking or deformation of the ceramic tube, deformation of the endcap, or from failure of the bonding agent. 9 figs.

  7. Ceramic pressure housing with metal endcaps

    DOEpatents

    Downing, Jr., John P.; DeRoos, Bradley G.; Hackman, Donald J.

    1995-01-01

    A housing for the containment of instrumentation in a high pressure fluid environment that consists of a metallic endcap and ceramic cylinder bonded together. The improvement comprises a structure which results in the improved sealing of said housing as the fluid pressure increases. The cylindrical ceramic tube and endcap are dimensioned such that mechanical failure does not occur when exposed to the desired external operating pressures which includes up to 36,000 feet of water. The housing is designed to withstand the external operating pressures without being subject to mechanical failure or excessive deformation which results in the loss of pressure housing integrity via cracking or deformation of the ceramic tube, deformation of the endcap, or from failure of the bonding agent.

  8. New Horizons for Learning: An Interview with Dee Dickinson

    ERIC Educational Resources Information Center

    Windham, Scott; Dickinson, Dee

    2005-01-01

    This article presents an interview with Dee Dickinson, founder and chief learning officer of New Horizons for Learning, a nonprofit international education network whose mission is to identify, communicate, and help implement effective teaching and learning strategies. Founded in 1980 and now operating largely through its Web site, New Horizons…

  9. Design of a dee vacuum vessel for Doublet III

    SciTech Connect

    Davis, L.G.

    1983-01-01

    The Big Dee modification project has completed the basic physics design and conceptual engineering design phase and is beginning detailed engineering. The project is funded in FY83 for completing most of the detailed design and placing orders for long lead components and systems. This paper summarizes the conceptual engineering design, especially of the vessel itself.

  10. Lower temperature curing thermoset polyimides utilizing a substituted norbornene endcap

    NASA Technical Reports Server (NTRS)

    Waters, John F.; Sukenik, Chaim N.; Kennedy, Vance O.; Livneh, Mordechai; Youngs, Wiley J.; Sutter, James K.; Meador, Mary A. B.; Burke, Luke A.; Ahn, Myong K.

    1992-01-01

    Methoxycarbonyl bridgehead substituted nadic diacid monomethyl ester, when used as an endcapping monomer, lowered the cure temperature of thermoset PMR polyimides without seriously affecting other desirable properties, such as glass transition temperature and thermal oxidative stability. The C-13 CP/MAS NMR of model compounds was used to follow the cure of resin systems using both the unmodified nadic endcap and the methoxycarbonyl-substituted endcap. Rheological analysis and differential scanning calorimetry DSC also provided evidence for the lower curing nature of the substituted endcap. Two regioisomers of the bridgehead-substituted endcap were isolated, and their chemical structures were elucidated by X-ray crystallography. The model compound and molecular modeling studies conducted ruled out the possibility of regioisomeric imide formation in the substituted endcaps.

  11. Better End-Cap Processing for Oxidation-Resistant Polyimides

    NASA Technical Reports Server (NTRS)

    Meador, Mary Ann B.; Frimer, Aryeh A.

    2004-01-01

    A class of end-cap compounds that increase the thermo-oxidative stab ility of polyimides of the polymerization of monomeric reactants (PM R) type has been extended. In addition, an improved processing proto col for this class of end-cap compounds has been invented.

  12. BaBar Forward Endcap Upgrade

    SciTech Connect

    Anulli, F.

    2004-06-17

    The muon and neutral hadron detector (Instrumented Flux Return or IFR) in the forward endcap of the BaBar detector at SLAC was upgraded by the installation of a new generation of Resistive Plate Chambers (RPCs) and by increasing the absorber. The chamber replacement was made necessary by the rapid aging and efficiency loss of the original BaBar RPCs. Based on our experience with those original RPCs and 24 RPCs with thinner linseed oil treatments, improvements in the design, construction, and testing of the new generation RPCs were implemented and are described in detail.

  13. BaBar forward endcap upgrade

    NASA Astrophysics Data System (ADS)

    Anulli, F.; Baldini, R.; Calcaterra, A.; Daniello, L.; de Sangro, R.; Finocchiaro, G.; Patteri, P.; Piccolo, M.; Santoni, M.; Zallo, A.; Cheng, C. H.; Lange, D. J.; Wright, D. M.; Boyce, R.; Krebs, J.; Messner, R.; Putallaz, G.; Wisniewski, W. J.; Buzzo, A.; Crosetti, G.; LoVetere, M.; Minutoli, S.; Passaggio, S.; Pollovio, P.; Robutti, E.; Tosi, S.; Trovato, A.; Cartaro, C.; Fabozzi, F.; Lista, L.; Piccolo, D.; Paolucci, P.; Avanzini, C.; Carpinelli, M.; Forti, F.; Neri, N.; Paoloni, E.; Rizzi, D.; Bellini, F.; Buccheri, A.; Cavoto, G.; del Re, D.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gargiulo, C.; Gaspero, M.; Lunadei, R.; Mazzoni, M. A.; Morganti, S.; Pelosi, A.; Pierini, M.; Piredda, G.; Voena, C.; Sinev, N.; Strom, D.; Foulkes, S.; Wang, K.; Band, H. R.; Hollar, J.; Tan, P.

    2005-02-01

    The muon and neutral hadron detector (instrumented flux return or IFR) in the forward endcap of the BaBar detector at SLAC was upgraded by the installation of a new generation of resistive plate chambers (RPCs) and by increasing the absorber. The chamber replacement was made necessary by the rapid aging and efficiency loss of the original BaBar RPCs. Based on our experience with those original RPCs and 24 RPCs with thinner linseed oil treatments, improvements in the design, construction, and testing of the new generation RPCs were implemented and are described in detail.

  14. New Endcaps for Improved Oxidation Resistance in PMR Polyimides

    NASA Technical Reports Server (NTRS)

    Frimer, Aryeh A.

    2003-01-01

    A polyimide is a polymer composed of alternating units of diamine and dianhydride, linked to each other via an imide bond. PMR polyimides, commonly used in the aerospace industry, are generally capped at each end by an endcap (such as the nadic endcap used in PMR 15) which serves a double function: (1) it limits the number of repeating units and, hence, the average molecular weight of the various polymer chains (oligomers), thereby improving processibility; (2) Upon further treatment (curing), the endcap crosslinks the various oligomer strands into a tough heat-resistant piece. It is this very endcap, so important to processing, that accounts for much of the weight loss in the polymer on aging in air at elevated temperatures. Understanding this degradation provides clues for designing new endcaps to slow down degradation, and prolong the lifetime of the material.

  15. Corpectomy cage subsidence with rectangular versus round endcaps.

    PubMed

    Deukmedjian, Armen R; Manwaring, Jotham; Le, Tien V; Turner, Alexander W L; Uribe, Juan S

    2014-09-01

    Corpectomy cages with rectangular endcaps utilize the stronger peripheral part of the endplate, potentially decreasing subsidence risk. The authors evaluated cage subsidence during cyclic biomechanical testing, comparing rectangular versus round endcaps. Fourteen cadaveric spinal segments (T12-L2) were dissected and potted at T12 and L2, then assigned to a rectangular (n=7) or round (n=7) endcap group. An L1 corpectomy was performed and under uniform conditions a cage/plate construct was cyclically tested in a servo-hydraulic frame with increasing load magnitude. Testing was terminated if the test machine actuator displacement exceeded 6mm, or the specimen completed cyclic loading at 2400 N. Number of cycles, compressive force and force-cycles product at test completion were all greater in the rectangular endcap group compared with the round endcap group (cycles: 3027 versus 2092 cycles; force: 1943 N versus 1533 N; force-cycles product: 6162kN·cycles versus 3973 kN·cycles), however these differences were not statistically significant (p ⩾ 0.076). After normalizing for individual specimen bone mineral density, the same measures increased to a greater extent with the rectangular endcaps (cycles: 3014 versus 1855 cycles; force: 1944 N versus 1444 N; force-cycles product: 6040 kN·cycles versus 2980 kN·cycles), and all differences were significant (p⩽0.030). The rectangular endcap expandable corpectomy cage displayed increased resistance to subsidence over the round endcap cage under cyclic loading as demonstrated by the larger number of cycles, maximum load and force-cycles product at test completion. This suggests rectangular endcaps will be less susceptible to subsidence than the round endcap design.

  16. The Hermetic Frontispiece: Contextualising John Dee's Hieroglyphic Monad.

    PubMed

    Forshaw, Peter J

    2017-05-01

    This essay examines the elaborate title pages of some of alchemist, astrologer, and bibliophile John Dee's publications with a focus on the two best known works that feature his famous Hieroglyphic Monad, the Propaedeumata Aphoristica (1558) and Monas Hieroglyphica (1564). The aim is to cast light on its context, identify sources for some textual influences in the works, unpack the visual symbolism in the two "monadic" title pages in relation to the two complementary sciences of "superior" and "inferior" astronomy, speculate on some of the more enigmatic details, and conclude with a brief discussion of a possible astrological significance to the dates of composition of the Monas Hieroglyphica.

  17. Phenylethynyl endcapping reagents and reactive diluents

    NASA Technical Reports Server (NTRS)

    Jensen, Brian J. (Inventor); Bryant, Robert G. (Inventor); Hergenrother, Paul M. (Inventor)

    1994-01-01

    A phenylethynyl composition which can be used to endcap nucleophilic species is employed in the production of phenylethynyl terminated reactive oligomers exclusively. These phenylethynyl terminated reactive oligomers display unique thermal characteristics, as exemplified by the model compound, 4-phenoxy 4'-phenylethynylbenzophenone, which is relatively stable at 200 C, but reacts at 350 C. In addition, a reactive diluent was prepared which decreases the melt viscosity of the phenylethynyl terminated oligomers and subsequently reacts therewith to increase density of the resulting thermoset. The novelty of this invention resides in the phenylethynyl composition used to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent was also employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to increase the crosslink density of the resulting thermoset. These materials have features which make them attractive candidates for use as composite matrices and adhesives.

  18. Finite element analysis of the SDC barrel and endcap calorimeters

    SciTech Connect

    Guarino, V.; Hill, N.; Nasiakta, J.

    1992-03-11

    In designing the SCD barrel and endcap calorimeters, the inter-module connecting forces must be known in order to determine the required size and number of connecting links between modules, and in order to understand how individual modules will be affected by these forces when assembled to form a full barrel and endcap. The connecting forces were found by analyzing three-dimensional Finite Element Models of both the barrel and endcap. This paper is divided into two parts, the first part will describe in detail the results of the barrel analysis and the second part will describe the results obtained from the endcap analysis. A similar approach was used in constructing the models for both analysis.

  19. Finite element analysis of the SDC barrel and endcap calorimeters

    SciTech Connect

    Guarino, V.; Hill, N.; Nasiakta, J.

    1992-03-11

    In designing the SCD barrel and endcap calorimeters, the inter-module connecting forces must be known in order to determine the required size and number of connecting links between modules, and in order to understand how individual modules will be affected by these forces when assembled to form a full barrel and endcap. The connecting forces were found by analyzing three-dimensional Finite Element Models of both the barrel and endcap. This paper is divided into two parts, the first part will describe in detail the results of the barrel analysis and the second part will describe the results obtained from the endcap analysis. A similar approach was used in constructing the models for both analysis.

  20. Process of end-capping a polyimide system

    NASA Technical Reports Server (NTRS)

    Stclair, T. L.; Burks, H. D. (Inventor)

    1985-01-01

    A process of endcapping a polyimide system with an endcapping agent in order to achieve a controlled decrease in molecular weight and melt viscosity along with predictable fracture resistance of the molded products is disclosed. The uncapped system is formed by combining an equimolar ratio of 4,4'-bis (3,4-dicarboxyphenoxy) diphenylsulfide dianhydride (BDSDA) and 1,-bis (aminophenoxy) benzene (APB) dissolved in bis (2-methoxyethyl)ether. The endcapped system is formed by dissolving APB in bis-(2-methoxyethyl)ether, adding the BDSDA. By varying the amount of endcapping from 0 to 4%, molecular weight is decreased from 13,900 to 8660. At a processing temperature of 250 C, there is a linear relationship between molecular weight and viscosity, with the viscosity decreasing by two orders of magnitude as the molecular weight decreased from 13,900 to 8660.

  1. Astronauts Thuot and Ivins work with the Dexterous End Effector (DEE)

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This view, photographed on the aft flight deck of the Earth-orbiting Space Shuttle Columbia, captures crew activity with the Dexterous End Effector (DEE) on the Remote Manipulator System (RMS). Astronauts Pierre J. Thuot and Marsha S. Ivins communicate with ground controllers during operations and observations with DEE.

  2. Molecular-Weight-Controlled, End-Capped Polybenzimidazoles

    NASA Technical Reports Server (NTRS)

    Connell, John W.; Hergenrother, Paul M.; Smith, Joseph G., Jr.

    1993-01-01

    Novel molecular-weight-controlled end-capped poly(arylene ether benzimidazole)s (PAEBI's) prepared by nucleophilic displacement reaction of di(hydroxyl)benzimidazole monomers with activated aromatic dihalides. Polymers prepared at various molecular weights by upsetting stoichiometry of monomers and end-capped with monohydroxybenzimidazole. Exhibit favorable physical and mechanical properties, improved solubility in polar aprotic solvents and better compression moldability. Potential applications as adhesives, coatings, films, fibers, membranes, moldings, and composite matrix resins.

  3. Functional end-capped conducting poly (3,4-ethylenedioxythiophene)

    NASA Astrophysics Data System (ADS)

    Sabatini, V.; Farina, H.; Ortenzi, Marco A.

    2016-05-01

    Methacrylate-terminated Poly(3,4-Ethylenedioxythiophene) (PEDOT) polymers with controlled degree of polymerization were successfully prepared by direct oxidative polycondensation between Ethylenedioxythiophene (EDOT) and a cross-linkable methacrylate end-capper monomer, obtained via Friedel Crafts acylation starting from EDOT and Methacryloyl chloride. The new polymer was synthesized in order to overcome the well-known technical problems of PEDOT, i.e. difficult processability and patterning, due to its poor solubility in common organic and inorganic solvents. The chemical structure and the degree of polymerization of the end-capped polymers were determined by 1H NMR spectra. A new synthesis of Methacrylate end-capped PEDOT with controlled degree of polymerization, soluble in common organic and chlorinated solvents and with improved conductivity, 210 S/cm, was performed. This method includes: direct oxidative polycondensation of 3,4-Ethylenedioxythiophene (EDOT) in the presence of a cross-linkable end-capper, i.e. Methacrylate end-capped EDOT prepared via Friedel Crafts acylation with Methacryloyl chloride and oxidant species, i.e. ferric sulfate. Furthermore, the oxidative polycondensation of EDOT monomer and Methacrylate end-capped EDOT in the presence of Sulfonated Polyethersulfone (SPES)- characterized by different degree of Sulfonation (DS)- as dopant agent was performed, leading to functional end-capped conducting PEDOT, easy to process and pattern, with conductivity of 210 S/cm, 50 S/cm higher than the one of commercial PEDOT.

  4. All "chick-a-dee" calls are not created equally. Part I. Open-ended categorization of chick-a-dee calls by sympatric and allopatric chickadees.

    PubMed

    Bloomfield, Laurie L; Sturdy, Christopher B

    2008-01-01

    Researchers trained 24 black-capped (Poecile atricapillus) and 12 mountain (P. gambeli) chickadees in an operant conditioning task to determine if they use open-ended categorization to classify "chick-a-dee" calls, and whether black-capped chickadees that had experience with mountain chick-a-dee calls (sympatric group) would perform this task differently than inexperienced black-capped chickadees (allopatric group). All experimental birds learned to discriminate between species' call categories faster than within a category (Experiment 1), and subsequently classified novel and original between-category chick-a-dee calls in Experiments 2 and 3 following a change in the category contingency. These results suggest that regardless of previous experience, black-capped and mountain chickadees classify their own and the other species' calls into two distinct, yet open-ended, species-level categories.

  5. Willem Silvius: "Typographical Parent" of John Dee's Monas Hieroglyphica.

    PubMed

    Mertens, Manuel

    2017-05-01

    The late Lode Van den Branden spend thirteen years systematically searching the archives for documents related to the Antwerp book trade of the fifteenth and sixteenth centuries, discovering new information on booksellers, printers, compositors, proof-readers, engravers, type cutters, type founders, and bookbinders. A great part of this material, now in the Royal Library of Belgium in Brussels, has yet to be studied, including his work on Willem Silvius. Guided by Van den Branden's findings, this article focuses on the period 1562-1567 in order to contextualise the collaboration between Silvius and John Dee in January 1564 which resulted in the Monas Hieroglyphica. Documents include Silvius's requests to the Privy Counsel for privileges, not only for books he published but also for several that he did not. A detailed inventory of his holdings, made after his arrest in 1567, allows us to reconstruct the plan of his bookshop, The Golden Angel, and its stock, including unsold copies of the Monas. These documents show why Silvius was the ideal choice of printer for the Monas, and allow us to envisage the space within which it was printed and sold.

  6. Prototype of time digitizing system for BESIII endcap TOF upgrade

    NASA Astrophysics Data System (ADS)

    Cao, Ping; Sun, Wei-Jia; Ji, Xiao-Lu; Fan, Huan-Huan; Wang, Si-Yu; Liu, Shu-Bin; An, Qi

    2014-04-01

    The prototype of a time digitizing system for the BESIII endcap TOF (ETOF) upgrade is introduced in this paper. The ETOF readout electronics has a distributed architecture. Hit signals from the multi-gap resistive plate chamber (MRPC) are signaled as LVDS by front-end electronics (FEE) and are then sent to the back-end time digitizing system via long shield differential twisted pair cables. The ETOF digitizing system consists of two VME crates, each of which contains modules for time digitization, clock, trigger, fast control, etc. The time digitizing module (TDIG) of this prototype can support up to 72 electrical channels for hit information measurement. The fast control (FCTL) module can operate in barrel or endcap mode. The barrel FCTL fans out fast control signals from the trigger system to the endcap FCTLs, merges data from the endcaps and then transfers to the trigger system. Without modifying the barrel TOF (BTOF) structure, this time digitizing architecture benefits from improved ETOF performance without degrading the BTOF performance. Lab experiments show that the time resolution of this digitizing system can be lower than 20 ps, and the data throughput to the DAQ can be about 92 Mbps. Beam experiments show that the total time resolution can be lower than 45 ps.

  7. Upgrade of hadron endcap calorimeters CMS at LHC

    NASA Astrophysics Data System (ADS)

    Bunin, P. D.; Zaroubin, A. V.

    2017-09-01

    We present the survey of the main tasks in upgrading the hadron endcap (HE) calorimeters of the CMS experiment at LHC. The results of the HE upgrade during the LHC Long Shutdown (2013-2014) and plans for upgrade during LHC Extended Year End Technical Stop (December 2016-May 2017) are discussed.

  8. Controlled molecular weight poly(arylene ether benzimidazole)s endcapped with benzimidazole and acetylene groups

    SciTech Connect

    Smith, J.G. Jr.; Connell, J.W.; Hergenrother, P.M.

    1993-12-31

    As a continuation of work on poly(arylene ether benzimidazole)s (PAEBIs), a series of controlled molecular weight polymers endcapped with benzimidazole, ethynyl, and phenylethynyl groups were prepared at stoichiometric imbalances of 7 and 10 mole percent and characterized. Earlier work with benzimidazole endcapped PAEBIs prepared at stoichiometric imbalances as high as 7 mole percent has shown very good retention of thin film properties up to 232{degrees}C. Ethynyl and phenylethynyl endcapped PAEBIs, air cured to 330{degrees}C, exhibited increases in Tgs of {approximately}20-30{degrees}C with respect to benzimidazole endcapped PAEBIs. Thin film properties for the ethynyl and phenylethynyl endcapped PAEBIs were similar to benzimidazole endcapped PAEBIs up to 232{degrees}C. Ethynyl and phenylethynyl endcapped PAEBI films tested at 250{degrees}C exhibited good retention of tensile properties.

  9. Tests and developments of the PANDA Endcap Disc DIRC

    NASA Astrophysics Data System (ADS)

    Etzelmüller, E.; Belias, A.; Dzhygadlo, R.; Gerhardt, A.; Götzen, K.; Kalicy, G.; Krebs, M.; Lehmann, D.; Nerling, F.; Patsyuk, M.; Peters, K.; Schepers, G.; Schmitt, L.; Schwarz, C.; Schwiening, J.; Traxler, M.; Zühlsdorf, M.; Britting, A.; Eyrich, W.; Lehmann, A.; Pfaffinger, M.; Uhlig, F.; Düren, M.; Föhl, K.; Hayrapetyan, A.; Kröck, B.; Merle, O.; Rieke, J.; Schmidt, M.; Cowie, E.; Keri, T.; Achenbach, P.; Cardinali, M.; Hoek, M.; Lauth, W.; Schlimme, S.; Sfienti, C.; Thiel, M.

    2016-04-01

    The PANDA experiment at the future Facility for Antiproton and Ion Research (FAIR) requires excellent particle identification. Two different DIRC detectors will utilize internally reflected Cherenkov light of charged particles to enable the separation of pions and kaons up to momenta of 4 GeV/c. The Endcap Disc DIRC will be placed in the forward endcap of PANDA's central spectrometer covering polar angles between 5° and 22°. Its final design is based on MCP-PMTs for the photon detection and an optical system made of fused silica. A new prototype has been investigated during a test beam at CERN in May 2015 and first results will be presented. In addition a new synthetic fused silica material by Nikon has been tested and was found to be radiation hard.

  10. Characterization of geometric isomers of Norbornene end-capped imides

    NASA Technical Reports Server (NTRS)

    Young, P. R.; Chang, A. C.

    1983-01-01

    Three geometric isomers from the thermal isomerization of methylene-4,4' bis(endo-N-phenylbicyclo/2.2.1/hept-2-ene-5,6-di carboximide) (I) were chromatographically separated and isolated in order to investigate the thermal cure of norbornene end-capped imide oligomers, which display considerable promise for use in various aerospace adhesive and composite applications. Endo-endo (I), endo-exo (II), and exo-exo (III) configurations were assigned to each compound based on the results of NMR spectroscopy. Several chromatographic, spectroscopic, and thermal techniques were then used to characterize these three isomers which serve as model compounds for norbornene end-capped polyimides. It was found that each compound thermally isomerized to an equilibrium mixture of all three compounds prior to cure. It is proposed that these compounds react by different mechanisms in air and nitrogen.

  11. CMS Hadron Endcap Calorimeter Upgrade Studies for Super-LHC

    NASA Astrophysics Data System (ADS)

    Bilki, Burak; CMS HCAL Collaboration

    2011-04-01

    When the Large Hadron Collider approaches Super-LHC conditions above a luminosity of 1034cm-2s-1, the scintillator tiles of the CMS Hadron Endcap calorimeters will lose their efficiencies. As a radiation hard solution, the scintillator tiles are planned to be replaced by quartz plates. In order to improve the efficiency of the photodetection, various methods were investigated including radiation hard wavelength shifters, p-terphenyl or 4% gallium doped zinc oxide. We constructed a 20 layer calorimeter prototype with pTp coated plates of size 20 cm × 20 cm, and tested the hadronic and the electromagnetic capabilities at the CERN H2 beam-line. The beam tests revealed a substantial light collection increase with pTp or ZnO:Ga deposited quartz plates. Here we report on the current R&D for a viable endcap calorimeter solution for CMS with beam tests and radiation damage studies.

  12. Thin gap gas chambers for the DELPHI endcaps

    SciTech Connect

    Adam, W.; Hrubec, J.

    1996-12-31

    Thin Gap Gas Chambers have been proposed for an upgrade of the endcaps of the DELPHI detector at LEP. Two full size chambers have been built and a study of the optimal operating conditions has been carried out. In this paper the main construction parameters are discussed and test results will be given. Tests of the electronic readout were performed and the general feasibility of the detector is demonstrated.

  13. Laser rods with undoped, flanged end-caps for end-pumped laser applications

    DOEpatents

    Meissner, Helmuth E.; Beach, Raymond J.; Bibeau, Camille; Sutton, Steven B.; Mitchell, Scott; Bass, Isaac; Honea, Eric

    1999-01-01

    A method and apparatus for achieving improved performance in a solid state laser is provided. A flanged, at least partially undoped end-cap is attached to at least one end of a laserable medium. Preferably flanged, undoped end-caps are attached to both ends of the laserable medium. Due to the low scatter requirements for the interface between the end-caps and the laser rod, a non-adhesive method of bonding is utilized such as optical contacting combined with a subsequent heat treatment of the optically contacted composite. The non-bonded end surfaces of the flanged end-caps are coated with laser cavity coatings appropriate for the lasing wavelength of the laser rod. A cooling jacket, sealably coupled to the flanged end-caps, surrounds the entire length of the laserable medium. Radiation from a pump source is focussed by a lens duct and passed through at least one flanged end-cap into the laser rod.

  14. Astronauts Thuot and Ivins work with the Dexterous End Effector (DEE)

    NASA Image and Video Library

    1994-03-05

    STS062-05-035 (4-18 March 1994) --- This 35mm frame, photographed on the aft flight deck of the earth-orbiting Space Shuttle Columbia, captures crew activity with the Dexterous End Effector (DEE) on the Remote Manipulator System (RMS). Astronauts Pierre J. Thuot and Marsha S. Ivins communicate with ground controllers during operations and observations with DEE. During the 14-day mission, three of the five STS-62 crewmembers took turns operating and observing the RMS in a series of one-hour sessions.

  15. The Royal Typographer and the Alchemist: John Dee, Willem Silvius, and the Diagrammatic Alchemy of the Monas Hieroglyphica.

    PubMed

    Clucas, Stephen

    2017-05-01

    John Dee's Monas Hieroglyphica (1564) was a work which involved a close collaboration between its author and his "singular friend" the Antwerp printer Willem Silvius, in whose house Dee was living whilst he composed the work and saw it through the press. This article considers the reasons why Dee chose to collaborate with Silvius, and the importance of the intellectual culture - and the print trade - of the Low Countries to the development of Dee's outlook. Dee's Monas was probably the first alchemical work which focused exclusively on the diagrammatic representation of the alchemical process, combining diagrams, cosmological schemes, and various forms of tabular grid. It is argued that in the Monas the boundaries between typography and alchemy are blurred as the diagrams "anatomising" his hieroglyphic sign (the "Monad") are seen as revealing truths about alchemical substances and processes.

  16. View of payload bay of STS-62 Columbia and Dexterous End Effector (DEE)

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This 70mm frame, photographed through the aft flight deck windows of the Earth-orbiting Space Shuttle Columbia, features activity with the Dexterous End Effector (DEE) on the Remote Manipulator System (RMS). This scene also provides an overview of many of the United States Microgravity Payload 2 (USMP) elements as well as OAST-2 experiments.

  17. How Can We Explain Poverty? Case Study of Dee Reveals the Complexities

    ERIC Educational Resources Information Center

    Seccombe, Karen

    2011-01-01

    Many theories have been offered to explain why people are impoverished. This article by Karen Seccombe uses the case study of "Dee," a newly single mother, to explore four of the most common: individualism, social structuralism, the culture of poverty, and fatalism. She concludes that poverty is a highly complex phenomenon, and it is likely that…

  18. How Can We Explain Poverty? Case Study of Dee Reveals the Complexities

    ERIC Educational Resources Information Center

    Seccombe, Karen

    2011-01-01

    Many theories have been offered to explain why people are impoverished. This article by Karen Seccombe uses the case study of "Dee," a newly single mother, to explore four of the most common: individualism, social structuralism, the culture of poverty, and fatalism. She concludes that poverty is a highly complex phenomenon, and it is likely that…

  19. Substituted Cyclohexene Endcaps for Polymers with Thermal-Oxidative Stability

    NASA Technical Reports Server (NTRS)

    2005-01-01

    This invention relates to polyimides having improved thermal-oxidative stability, to the process of preparing said polyimides, and the use of polyimide prepolymers in the preparation of prepregs and composites. The polyimides are particularly usefull in the preparation of fiber-reinforced, high-temperature composites for use in various engine parts including inlets, fan ducts, exit flaps and other parts of high speed aircraft. The polyimides are derived from the polymerization of effective amounts of at least one tetracarboxylic dianhydride, at least one polyamine and a novel dicarboxylic endcap having the formula presented.

  20. Preparation and properties of silane-endcapped polyimide adhesives

    NASA Technical Reports Server (NTRS)

    Maudgal, S.; St. Clair, T. L.

    1984-01-01

    Silane-endcapped polyimide high temperature adhesive formulations were prepared by reacting anhydride-terminated poly(amic acid), obtained from benzophenonetetracarboxylic dianhydride and a diamine (3,3'-, 3,4'- or 4,4'-diaminodiphenylmethane and 3,3', 3,4'- or 4,4'-diaminobenzophenone) with varying amounts of gama-aminopropyltriethoxysilane in dimethylacetamide. Resin properties were evaluated by torsional braid analysis and thermogravimetric analysis. Lap shear strengths of some of the adhesive bonds were determined at room temperature and at 177 C before and after ageing at 200 C for 2500 h and after boiling in water for 72 h.

  1. Preparation and properties of silane-endcapped polyimide adhesives

    NASA Technical Reports Server (NTRS)

    Maudgal, S.; St. Clair, T. L.

    1984-01-01

    Silane-endcapped polyimide high temperature adhesive formulations were prepared by reacting anhydride-terminated poly(amic acid), obtained from benzophenonetetracarboxylic dianhydride and a diamine (3,3'-, 3,4'- or 4,4'-diaminodiphenylmethane and 3,3', 3,4'- or 4,4'-diaminobenzophenone) with varying amounts of gama-aminopropyltriethoxysilane in dimethylacetamide. Resin properties were evaluated by torsional braid analysis and thermogravimetric analysis. Lap shear strengths of some of the adhesive bonds were determined at room temperature and at 177 C before and after ageing at 200 C for 2500 h and after boiling in water for 72 h.

  2. NMR Guided Design of Endcaps With Improved Oxidation Resistance

    NASA Technical Reports Server (NTRS)

    Meador, Mary Ann B.; Frimer, Aryeh A.

    2002-01-01

    A polyimide is a polymer composed of alternating units of diamine and dianhydride, linked to each other via an imide bond. PMR polyimides, commonly used in the aerospace industry, are generally capped at each end by a norbornene endcap which serves a double function: (1) It limits the number of repeating units and, hence, the average molecular weight of the various polymer chains (oligomers), thereby improving processibility; (2) Upon further treatment (curing), the endcap crosslinks the various oligomer strands into a tough heat-resistant piece. Norbornenyl-end capped PMR polyimide resins' are widely used as polymer matrix composite materials for aircraft engine applications,2 since they combine ease of processing with good oxidative stability up to 300 C. PMR resins are prepared by a twestep approach involving the initial formation of oligomeric pre-polymers capped at both ends by a latent reactive end cap. The end cap undergoes cross-linking during higher temperature processing, producing the desired low density, high specific strength materials, as shown for PMR-15.

  3. Imide Oligomers Endcapped with Phenylethynl Phthalic Anhydrides and Polymers Therefrom

    NASA Technical Reports Server (NTRS)

    Hergenrother, Paul M. (Inventor); Smith, Joseph G., Jr. (Inventor)

    1998-01-01

    Controlled molecular weight phenylethynyl terminated imide oligomers (PETIs) have been prepared by the cyclodehydration of precursor phenylethynyl terminated amic acid oligomers. Amino terminated amic acid oligomers are prepared from the reaction of dianhydride(s) with an excess of diamine(s) and subsequently endcapped with phenylethynyl phthalic anhydride(s) (PEPA). The polymerizations are carried out in polar aprotic solvents such as N-methyl-2-pyrrolidinone or N.N-dimethylacetamide under nitrogen at room temperature. The amic acid oligomers are subsequently cyclodehydrated either thermally or cheznicauy to the corresponding imide oligomers. Direct preparation of PETIs from the reaction of dianhydxide(s) with an excess of diamine(s) and endcapped with phenylethynyl phthalic anhydride(s) has been performed in m-cresol. Phenylethynyl phthalic anhydrides are synthesized by the palladium catalyzed reaction of phenylacetylene with bromo substituted phthalic anhydrides in triethylamine. These new materials exhibit excellent properties and are potentially useful as adhesives, coatings, films, moldings and composite matrices.

  4. Imide oligomers endcapped with phenylethynyl phthalic anhydrides and polymers therefrom

    NASA Technical Reports Server (NTRS)

    Hergenrother, Paul M. (Inventor); Smith, Jr., Joseph G. (Inventor)

    1996-01-01

    Controlled molecular weight phenylethynyl terminated imide oligomers (PETIs) have been prepared by the cyclodehydration of precursor phenylethynyl terminated amic acid oligomers. Amino terminated amic acid oligomers are prepared from the reaction of dianhydride(s) with an excess of diamine(s) and subsequently endcapped with phenylethynyl phthalic anhydride(s) (PEPA). The polymerizations are carried out in polar aprotic solvents such as N-methyl-2-pyrrolidinone or N,N-dimethylacetamide under nitrogen at room temperature. The amic acid oligomers are subsequently cyclodehydrated either thermally or chemically to the corresponding imide oligomers. Direct preparation of PETIs from the reaction of dianhydride(s) with an excess of diamine(s) and endcapped with phenylethynyl phthalic anhydride(s) has been performed in m-cresol. Phenylethynyl phthalic anhydrides are synthesized by the palladium catalyzed reaction of phenylacetylene with bromo substituted phthalic anhydrides in triethylamine. These new materials exhibit excellent properties and are potentially useful as adhesives, coatings, films, moldings and composite matrices.

  5. The backward end-cap for the PANDA electromagnetic calorimeter

    NASA Astrophysics Data System (ADS)

    Capozza, L.; Maas, F. E.; Noll, O.; Rodriguez Pineiro, D.; Valente, R.

    2015-02-01

    The PANDA experiment at the new FAIR facility will cover a broad experimental programme in hadron structure and spectroscopy. As a multipurpose detector, the PANDA spectrometer needs to ensure almost 4π coverage of the scattering solid angle, full and accurate multiple-particle event reconstruction and very good particle identification capabilities. The electromagnetic calorimeter (EMC) will be a key item for many of these aspects. Particle energies ranging from some MeVs to several GeVs have to be measured with a relative resolution of 1% ⊕ 2%/√E/GeV . It will be a homogeneous calorimeter made of PbWO4 crystals and will be operated at -25°C, in order to improve the scintillation light yield. With the exception of the very forward section, the light will be detected by large area avalanche photodiodes (APDs). The current pulses from the APDs will be integrated, amplified and shaped by ASIC chips which were developed for this purpose. The whole calorimeter has been designed in three sections: a forward end-cap, a central barrel and a backward end-cap (BWEC). In this contribution, a status report on the development of the BWEC is presented.

  6. NMR Guided Design of Endcaps With Improved Oxidation Resistance

    NASA Technical Reports Server (NTRS)

    Meador, Mary Ann B.; Frimer, Aryeh A.

    2002-01-01

    A polyimide is a polymer composed of alternating units of diamine and dianhydride, linked to each other via an imide bond. PMR polyimides, commonly used in the aerospace industry, are generally capped at each end by a norbornene endcap which serves a double function: (1) It limits the number of repeating units and, hence, the average molecular weight of the various polymer chains (oligomers), thereby improving processibility; (2) Upon further treatment (curing), the endcap crosslinks the various oligomer strands into a tough heat-resistant piece. Norbornenyl-end capped PMR polyimide resins' are widely used as polymer matrix composite materials for aircraft engine applications,2 since they combine ease of processing with good oxidative stability up to 300 C. PMR resins are prepared by a twestep approach involving the initial formation of oligomeric pre-polymers capped at both ends by a latent reactive end cap. The end cap undergoes cross-linking during higher temperature processing, producing the desired low density, high specific strength materials, as shown for PMR-15.

  7. All "chick-a-dee" calls are not created equally. Part II. Mechanisms for discrimination by sympatric and allopatric chickadees.

    PubMed

    Bloomfield, L L; Farrell, T M; Sturdy, C B

    2008-01-01

    The 'chick-a-dee' call, common to all members of the genus Poecile, is used by both sexes throughout the year to putatively co-ordinate flock movements and register alarm. In some regions, two or more chickadee species occupy overlapping territories, and therefore it is essential that these sympatric species learn to discriminate between the acoustically similar calls of the species. Previous work from our laboratory has shown that black-capped (P. atricapillus) and mountain chickadees (P. gambeli) discriminate between the species' calls and treat each species' calls as belonging to separate open-ended categories. In the current set of experiments we use an operant conditioning paradigm to gain an understanding of (1) how the birds perform this discrimination and (2) whether birds with different levels of experience with heterospecific calls perform this task differently. We use natural recordings of chick-a-dee calls and perform several manipulations to test the importance of the introductory 'chick-a' portion and the terminal 'dee' portion for discriminating among the calls of the two species. Evidence suggests that birds mainly use the terminal 'dee' portion, as all groups of birds responded similarly to these probe stimuli and control chick-a-dee calls. We propose that the terminal 'dee' portion, consisting of lower frequency notes, is more likely to be resistant to degradation, and therefore a more reliable species-specific marker.

  8. FCC-ee: Energy Calibration

    SciTech Connect

    Koratzinos, M.; Blondel, A.; Gianfelice-Wendt, E.; Zimmermann, F.

    2015-06-02

    The FCC-ee aims to improve on electroweak precision measurements, with goals of 100 ke V on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the center-of-mass energy when operating at the Z peak and WW threshold. This can be achieved by making systematic use of resonant depolarization. A number of issues have been identified, due in particular to the long polarization times. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.

  9. Recent Results From The ATLAS Endcap Combined Test Beam

    SciTech Connect

    Schacht, Peter

    2006-10-27

    The ATLAS detector at the LHC at CERN is entering the last phase of construction, with the ATLAS calorimeter passing already the first steps of commissioning. The endcap region in the range of pseudorapidity 2.4 < |{eta}| < 4.0 is a particular complex one, with the electromagnetic, hadronic and forward calorimeters. In a dedicated beam run this region has been studied using the individual calorimeter modules. The set-up was as close as possible to the real ATLAS calorimeter, including all details like inactive support material structures. The goal is to validate the MC simulation for the different regions and to cross check the intercalibration of the various calorimeters. Electron and pion data have been taken in an energy range 6 < E < 200 GeV with special emphasis on lateral and vertical scans to study the transition regions in detail.

  10. CMS HCAL Endcap Simulations for the High Luminosity LHC

    NASA Astrophysics Data System (ADS)

    Pedro, Kevin

    2013-04-01

    The long-term high luminosity upgrade to the LHC will increase the levels of radiation affecting the CMS calorimeters. By the end of Phase 2, parts of the electromagnetic and hadronic endcap calorimeters could receive up to 10 MRad of radiation. A model of the radiation damage to HCAL, which has been implemented in the CMS fast simulation, will be described. The effects of radiation on physics capabilities with jets will be presented, with the most important effect coming from scaling of photodetector noise due to recalibration. In addition, a standalone Geant4 simulation with a simplified geometry can be used to test configurations with new radiation-hard ECALs. Results for pion response and resolution with new configurations will be shown.

  11. EE-3A Logging Report

    SciTech Connect

    Anderson, David W.

    1993-12-15

    Two logs of EE-3A were performed during the last couple of weeks. The first of which, was a Temperature/Casing-Collar Locator (CCL) log, which took place on Friday, December 10th., 1993. The second log was a Caliper log which was done in cooperation with the Dia-Log Company, of Odessa, TX. on Monday, December, 13th., 1993.

  12. Effects of Endcaps on the Properties of Polyimide/Carbon Fiber Composites

    NASA Technical Reports Server (NTRS)

    Chuang, Kathy C.; Waters, Joseph E.

    1995-01-01

    Carbon fiber (T650-35) composites were fabricated from polyimide resins, using 4,4'-(hexafluoroisopropylidene) diphthalic acid, dimethyl esters (HFDE) and p-phenylenediamine (p-PDA) with three different endcaps; namely, nadic ester (NE), p-aminostyrene (p-AS) and 4-phenylethynylphthalic acid, methyl ester. The curing chemistry of these endcaps will be reviewed. The thermo-oxidative stability as well as the physical and mechanical properties of these polyimide/carbon fiber composites will be discussed.

  13. Laser rods with undoped, flanged end-caps for end-pumped laser applications

    DOEpatents

    Meissner, H.E.; Beach, R.J.; Bibeau, C.; Sutton, S.B.; Mitchell, S.; Bass, I.; Honea, E.

    1999-08-10

    A method and apparatus for achieving improved performance in a solid state laser is provided. A flanged, at least partially undoped end-cap is attached to at least one end of a laserable medium. Preferably flanged, undoped end-caps are attached to both ends of the laserable medium. Due to the low scatter requirements for the interface between the end-caps and the laser rod, a non-adhesive method of bonding is utilized such as optical contacting combined with a subsequent heat treatment of the optically contacted composite. The non-bonded end surfaces of the flanged end-caps are coated with laser cavity coatings appropriate for the lasing wavelength of the laser rod. A cooling jacket, sealably coupled to the flanged end-caps, surrounds the entire length of the laserable medium. Radiation from a pump source is focused by a lens duct and passed through at least one flanged end-cap into the laser rod. 14 figs.

  14. The Ideal of a Knowledge Society in Dee's Monas Hieroglyphica (1564) and Other Productions by Willem Silvius.

    PubMed

    Vanden Broecke, Steven

    2017-05-01

    It is well known that John Dee presented the Monas Hieroglyphica (1564) as the basis for a wholesale transformation of early modern knowledge culture - a claim that raises obvious issues of epistemic credibility. This paper discusses the social techniques that Dee proposed as a solution to these issues. First, our reconstruction of the "socio-epistemic imaginary" that Dee conveyed in the Monas shows how the marriage between a traditional rhetoric of secrecy and a courtly politicising of natural philosophy allowed Dee to invent social distinctions between credible and false purveyors of true knowledge. Second, a comparison with Willem Silvius's other scientific print productions of the 1560s shows how Dee's socio-epistemic solutions to the problem of knowledge were also promoted by local Galenic physicians taking in hand the challenges of the medical marketplace. However, it also had to contend with alternative socio-epistemic imaginaries, promoted by Paracelsian physicians and more lowly alchemists, which primarily defined knowledge communities as moral communities of Christian charity.

  15. Redrilling Plan for EE-3

    SciTech Connect

    Murphy, Hugh D.

    1984-11-14

    Attached is the 3rd draft copy of the EE-3 redrilling plan. We believe that we have taken the document as far as we can and feel that it is ready for distribution as soon as the trajectory question is resolved and necessary changes in wording that result are made. The figures are presently being redrawn by John Paskiewicz and should be ready in about one week.

  16. Conceptual design summary for modifying Doublet III to a large dee-shaped configuration

    SciTech Connect

    Davis, L.G.; Gallix, R.; Luxon, J.L.; Mahdavi, M.A.; Puhn, F.A.; Rock, P.J.; Wesley, J.C.

    1983-05-01

    The Doublet III tokamak is to be reconfigured by replacing its indented (doublet) vacuum vessel with a larger one of a dee-shaped cross section. This change will permit significantly larger elongated plasmas than is presently possible and will allow higher plasma current (up to 5 MA) and anticipated longer confinement time. Reactor relevant values of stable beta and plasma pressure are predicted. This modification, while resulting in a significant change in capability, utilizes most of the existing coils, structure, systems and facility.

  17. Information theoretical approaches to chick-a-dee calls of Carolina chickadees (Poecile carolinensis).

    PubMed

    Freeberg, Todd M; Lucas, Jeffrey R

    2012-02-01

    One aim of this study was to apply information theoretical analyses to understanding the structural complexity of chick-a-dee calls of Carolina chickadees, Poecile carolinensis. A second aim of this study was to compare this structural complexity to that of the calls of black-capped chickadees, P. atricapillus, described in an earlier published report (Hailman, Ficken, & Ficken, 1985). Chick-a-dee calls were recorded from Carolina chickadees in a naturalistic observation study in eastern Tennessee. Calls were analyzed using approaches from information theory, including transition probability matrices, Zipf's rules, entropies, and information coding capacities of calls and notes of calls. As described for black-capped chickadees, calls of Carolina chickadees exhibited considerable structural complexity. Most results suggested that the call of Carolina chickadees is more structurally complex than that of black-capped chickadees. These findings add support to the growing literature on the complexity of this call system in Paridae species. Furthermore, these results point to the feasibility of detailed cross-species comparative analyses that may allow strong testing of hypotheses regarding signal evolution.

  18. Hydraulic model and flood-inundation maps developed for the Pee Dee National Wildlife Refuge, North Carolina

    USGS Publications Warehouse

    Smith, Douglas G.; Wagner, Chad R.

    2016-04-08

    A series of digital flood-inundation maps were developed on the basis of the water-surface profiles produced by the model. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Program Web site at http://water.usgs.gov/osw/flood_inundation, depict estimates of the areal extent and depth of flooding corresponding to selected water levels at the USGS streamgage Pee Dee River at Pee Dee Refuge near Ansonville, N.C. These maps, when combined with real-time water-level information from USGS streamgages, provide managers with critical information to help plan flood-response activities and resource protection efforts.

  19. Preparation and applications of a variety of fluoroalkyl end-capped oligomer/hydroxyapatite composites.

    PubMed

    Takashima, Hiroki; Iwaki, Ken-Ichi; Furukuwa, Rika; Takishita, Katsuhisa; Sawada, Hideo

    2008-04-15

    A variety of fluoroalkyl end-capped oligomers were applied to the preparation of fluorinated oligomer/hydroxyapatite (HAp) composites (particle size: 38-356 nm), which exhibit a good dispersibility in water and traditional organic solvents. These fluoroalkyl end-capped oligomer/HAp composites were easily prepared by the reactions of disodium hydrogen phosphate and calcium chloride in the presence of self-assembled molecular aggregates formed by fluoroalkyl end-capped oligomers in aqueous solutions. In these fluorinated HAp composites thus obtained, fluoroalkyl end-capped acrylic acid oligomers and 2-methacryloyloxyethanesulfonic acid oligomer/HAp nanocomposites afforded transparent colorless solutions toward water; however, fluoroalkyl end-capped N,N-dimethylacrylamide oligomer and acryloylmorpholine oligomer were found to afford transparent colorless solutions with trace amounts of white-colored HAp precipitants under similar conditions. HAp could be encapsulated more effectively into fluorinated 2-methacryloyloxyethanesulfonic acid oligomeric aggregate cores to afford colloidal stable fluorinated oligomer/HAp composites, compared to that of fluorinated acrylic acid oligomers. These fluorinated oligomer/HAp composites were applied to the surface modification of glass and PVA to exhibit a good oleophobicity imparted by fluorine. HAp formation was newly observed on the modified polyethylene terephthalate film surface treated with fluorinated 2-methacryloyloxyethanesulfonic acid oligomers and acrylic acid oligomer/HAp composites by soaking these films into the simulated body fluid.

  20. Transient controls on estuarine SPM fluxes: case study in the Dee Estuary, UK.

    NASA Astrophysics Data System (ADS)

    Amoudry, Laurent; Williams, Megan; Todd, David

    2017-04-01

    Estuaries are a critical interface between land and coastal ocean across which freshwater, suspended particulate matter (SPM), and consequently terrestrial carbon, nutrients and anthropogenic contaminants are exchanged. Suspended particulate matter is closely linked to estuarine turbidity; it affects water quality and estuarine ecology; and it contributes to overall estuarine sediment budgets. However, predicting the response of estuarine ecosystems to climate change and human interventions remains difficult partly due to a lack of comprehensive understanding of SPM concentrations and fluxes across time scales from intratidal to seasonal and interannual variability. We investigate the dynamics of suspended sediment and suspended particulate matter in a hypertidal estuary with a maximum tidal range in excess of 10 m and tidal currents reaching over 1 m/s: the Dee Estuary. This estuary is located in northwest England and outflows in Liverpool Bay, itself in the eastern Irish Sea. The Dee Estuary is a funnel-shaped, coastal plain estuary, which is about 30 km long with a maximum width of 8.5 km at the mouth, and consists of mixed sediments. We focus on field observations, collected during several campaigns in the channels of the Dee Estuary from 2004 to 2009 using acoustic and optical instrumentation, which provide intratidal measurements of flow velocity and suspended sediment, and thus sediment fluxes, over approximately a month. Measurements in February-March 2008 highlight three distinct hydrodynamic regimes: a current dominant regime at neap tides (14-21 February); a combined wave-current regime at spring tides (21-29 February); and a wave dominant regime at neap tide (1-4 March). While analysis of tidal distortion and dominance predicts weak ebb dominant channels, the observations yield flood dominant sediment transport. The net sediment flux exhibits a two-layer structure - import near the bed, export near the surface - that is consistent with the residual

  1. Addition Curing Thermosets Endcapped with 4-Amino (2.2) Paracyclophane

    NASA Technical Reports Server (NTRS)

    Waters, John F.; Sutter, James K.; Meador, Mary A. B.; Baldwin, Larry J.; Meador, Michael A.

    1991-01-01

    A new family of addition curing polyimides were prepared that contained 4-amino (2.2)-paracyclophane as the endcap. An improved synthesis of the endcap 4-amino-(2.2) cyclophane was accomplished increasing the yield to 60 percent and simplifying the procedure. DSC and rheological analysis of endcapped polyimide oligomers confirmed that the onset for polymerization of the ethylene bridge was 250 C. C-13 CP/MAS NMR was used to determine the structural changes of the oligomers after thermal treatment. The cyclophane capped polyimides were successfully compression molded to form void free neat resin specimens. Tg's as high as 353 C were obtained by thermomechanical analysis for postcured samples. Preliminary thermal stability studies suggest that these resins have a high onset of decomposition ranging from 549 to 567 C.

  2. Mixture of cholesterol end-capped polyethylene glycol with DSPC liposomal

    NASA Astrophysics Data System (ADS)

    Sharifi, Soheil

    2015-07-01

    The dynamic of network of self-assembled liposome by end-capped polymer was investigated using dynamic light scattering. The liposome network, physically cross-linked by mixed liposome solutions with three different length scale of cholesterol end-capped polyethylene glycol. The network of liposome is dependent on both the polymer concentration and length scale. In the pure liposome, one motion at low time scale is observed by DLS. In the higher concentration of polymer in liposome, several motion is observed that the fast motion is alpha relaxation and other two slow motion are beta and gamma relaxations. The distance between diffusion coefficient of fast and slow relaxation is increased with increase of length scale of endcapped polymers. The SAXS data is fitted with a Percus-Yevick hard sphere model and it shows that the size of liposome increasing with increase of polymer length scale in the mixture system.

  3. An investigation of sex differences in acoustic features in black-capped chickadee (Poecile atricapillus) chick-a-dee calls.

    PubMed

    Campbell, Kimberley A; Hahn, Allison H; Congdon, Jenna V; Sturdy, Christopher B

    2016-09-01

    Sex differences have been identified in a number of black-capped chickadee vocalizations and in the chick-a-dee calls of other chickadee species [i.e., Carolina chickadees (Poecile carolinensis)]. In the current study, 12 acoustic features in black-capped chickadee chick-a-dee calls were investigated, including both frequency and duration measurements. Using permuted discriminant function analyses, these features were examined to determine if any features could be used to identify the sex of the caller. Only one note type (A notes) classified male and female calls at levels approaching significance. In particular, a permuted discriminant function analysis revealed that the start frequency of A notes best allowed for categorization between the sexes compared to any other acoustic parameter. This finding is consistent with previous research on Carolina chickadee chick-a-dee calls that found that the starting frequency differed between male- and female-produced A notes [Freeberg, Lucas, and Clucas (2003). J. Acoust. Soc. Am. 113, 2127-2136]. Taken together, these results and the results of studies with other chickadee species suggest that sex differences likely exist in the chick-a-dee call, specifically acoustic features in A notes, but that more complex features than those addressed here may be associated with the sex of the caller.

  4. Ann Hutchinson (as subject), Dr. Joan Vernikos (R), Dee O'Hara (L), J. Evans and E. Lowe pose for

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Ann Hutchinson (as subject), Dr. Joan Vernikos (R), Dee O'Hara (L), J. Evans and E. Lowe pose for pictures in the NASA Magazine aritcle 'How it Feels to be a Human Test Subject' as they prepare for a bed rest study to simulate the efects of microgravity on the human body.

  5. Note types and coding in Parid vocalizations: the chick-a-dee call of the boreal chickadee (Poecile hudsonicus).

    PubMed

    Moscicki, Michele K; Hoeschele, Marisa; Bloomfield, Laurie L; Modanu, Maria; Charrier, Isabelle; Sturdy, Christopher B

    2011-05-01

    An important first step in characterizing a vocalization is to classify, describe, and measure the elements of that vocalization. Here, this methodology is employed to study the chick-a-dee call of the boreal chickadee (Poecile hudsonicus). The note types (A, B, C, D, and D(h)) in a sample of boreal chickadee calls are identified and described, spectral and temporal features of each note type are analyzed, and production phenomena in each note type are identified and quantified. Acoustic variability is compared across note types and individuals to determine potential features used for note-type and individual discrimination. Frequency measures appear to be the most useful features for identifying note types and individuals, though total duration may also be useful. Call syntax reveals that boreal chick-a-dee calls follow a general rule of note-type order, namely A-B-C-D(h)-D, and that any note type in this sequence may be repeated or omitted. This work provides a thorough description of the boreal chickadee chick-a-dee call and will serve as a foundation for future studies aimed at elucidating this call's functional significance within this species, as well as for studies comparing chick-a-dee calls across Poecile species.

  6. Variation in chick-a-dee calls of tufted titmice, Baeolophus bicolor: note type and individual distinctiveness.

    PubMed

    Owens, Jessica L; Freeberg, Todd M

    2007-08-01

    The chick-a-dee call of chickadee species (genus Poecile) has been the focus of much research. A great deal is known about the structural complexity and the meaning of variation in notes making up calls in these species. However, little is known about the likely homologous "chick-a-dee" call of the closely related tufted titmouse, Baeolophus bicolor. Tufted titmice are a prime candidate for comparative analyses of the call, because their vocal and social systems share many characteristics with those of chickadees. To address the paucity of data on the structure of chick-a-dee calls of tufted titmice, we recorded birds in field and aviary settings. Four main note types were identified in the call: Z, A, D(h), and D notes. Several acoustic parameters of each note type were measured, and statistical analyses revealed that the note types are acoustically distinct from one another. Furthermore, note types vary in the extent of individual distinctiveness reflected in their acoustic parameters. This first step towards understanding the chick-a-dee call of tufted titmice indicates that the call is comparable in structure and complexity to the calls of chickadees.

  7. Categorization and discrimination of "chick-a-dee" calls by wild-caught and hand-reared chickadees.

    PubMed

    Bloomfield, Laurie L; Farrell, Tara M; Sturdy, Christopher B

    2008-02-01

    Bloomfield and Sturdy [Bloomfield, L.L., Sturdy, C.B. All chick-a-dee calls are not created equally. Part I. Open-ended categorization by sympatric and allopatric chickadees. Behav. Proc., in press] previously reported that black-capped chickadees (Poecile atricapillus) discriminate conspecific from heterospecific (mountain chickadee, P. gambeli) 'chick-a-dee' calls, and their ability to accurately discriminate and classify the calls as belonging to separate species' defined categories was largely unaffected by their prior experience with mountain chickadees and their calls. To further examine the potential influence of experience on discrimination and categorization, we compare wild-caught black-capped chickadees, wild-caught mountain chickadees, and black-capped chickadees hand-reared among either adult laboratory-housed black-capped chickadees or adult laboratory-housed mountain chickadees on a true category/pseudo category chick-a-dee call discrimination task. Irrespective of group assignment, hand-reared birds performed as well as wild-caught birds and did not show a conspecific- or rearing-specific advantage in discrimination, categorization or memorization of chick-a-dee calls. While vocal learning is under the influence of ontogenetic experience, the results derived from the current methods suggest that experience (or a lack thereof) does not affect categorization and memorization abilities.

  8. Ann Hutchinson (as subject), Dr. Joan Vernikos (R), Dee O'Hara (L), J. Evans and E. Lowe pose for

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Ann Hutchinson (as subject), Dr. Joan Vernikos (R), Dee O'Hara (L), J. Evans and E. Lowe pose for pictures in the NASA Magazine aritcle 'How it Feels to be a Human Test Subject' as they prepare for a bed rest study to simulate the efects of microgravity on the human body.

  9. 78 FR 38028 - Duke Energy Progress, Inc.; Notice of Video Conference To Discuss Yadkin-Pee Dee Hydroelectric...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Duke Energy Progress, Inc.; Notice of Video Conference To Discuss Yadkin-Pee Dee Hydroelectric Project Biological Opinion On April 29, 2013, the National Marine Fisheries Service (NMFS) of the National Oceanic...

  10. 40 CFR Table 1 to Subpart Ee of... - Applicability of General Provisions to Subpart EE

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Reference Applies to subpart EE Comment 63.1(a)(1) Yes Additional terms defined in § 63.702(a); when overlap between subparts A and EE occurs, subpart EE takes precedence. 63.1(a)(2)-(14) Yes. 63.1(b)(1)-(3) Yes. 63.1(c)(1) Yes Subpart EE specifies the applicability of each paragraph in subpart A to sources subject...

  11. 40 CFR Table 1 to Subpart Ee of... - Applicability of General Provisions to Subpart EE

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Reference Applies to subpart EE Comment 63.1(a)(1) Yes Additional terms defined in § 63.702(a); when overlap between subparts A and EE occurs, subpart EE takes precedence. 63.1(a)(2)-(14) Yes. 63.1(b)(1)-(3) Yes. 63.1(c)(1) Yes Subpart EE specifies the applicability of each paragraph in subpart A to sources subject...

  12. 40 CFR Table 1 to Subpart Ee of... - Applicability of General Provisions to Subpart EE

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Reference Applies to subpart EE Comment 63.1(a)(1) Yes Additional terms defined in § 63.702(a); when overlap between subparts A and EE occurs, subpart EE takes precedence. 63.1(a)(2)-(14) Yes. 63.1(b)(1)-(3) Yes. 63.1(c)(1) Yes Subpart EE specifies the applicability of each paragraph in subpart A to sources subject...

  13. 40 CFR Table 1 to Subpart Ee of... - Applicability of General Provisions to Subpart EE

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Reference Applies to subpart EE Comment 63.1(a)(1) Yes Additional terms defined in § 63.702(a); when overlap between subparts A and EE occurs, subpart EE takes precedence. 63.1(a)(2)-(14) Yes. 63.1(b)(1)-(3) Yes. 63.1(c)(1) Yes Subpart EE specifies the applicability of each paragraph in subpart A to sources subject...

  14. Cementitious building material incorporating end-capped polyethylene glycol as a phase change material

    DOEpatents

    Salyer, Ival O.; Griffen, Charles W.

    1986-01-01

    A cementitious composition comprising a cementitious material and polyethylene glycol or end-capped polyethylene glycol as a phase change material, said polyethylene glycol and said end-capped polyethylene glycol having a molecular weight greater than about 400 and a heat of fusion greater than about 30 cal/g; the compositions are useful in making pre-formed building materials such as concrete blocks, brick, dry wall and the like or in making poured structures such as walls or floor pads; the glycols can be encapsulated to reduce their tendency to retard set.

  15. Lorentz angle studies for the SLD endcap Cerenkov Ring Imaging Detector

    SciTech Connect

    Coyle, P.; Cavalli-Sforza, M.; Coyne, D.; Schneider, M.; Spencer, E.; Williams, D.; Ashford, V.; Bienz, T.; Bird, F.; Gaillard, M.

    1987-11-01

    The design of the endcap Cerenkov Ring Imaging Detectors for SLD requires a detailed understanding of how electrons drift in gases under the influence of crossed electric and magnetic fields. In this report, we present recent measurements of Lorentz angles and drift velocities in gases suitable for the endcap CRID photon detectors. We compare these measurements to predictions from a theoretical model; good agreement is observed. Based on our results we present a design for detectors operating in a 0.6 Tesla transverse magnetic field. 14 refs., 10 figs., 4 tabs.

  16. River Responses to Climate Change: Examining the Subsurface Architecture of the Pee Dee River, South Carolina

    NASA Astrophysics Data System (ADS)

    Hill, J. C.; Wright, E. E.

    2011-12-01

    A detailed geological record of climate and landscape change through multiple glacial-interglacial cycles is preserved in the morphology and stratigraphy of South Carolina's coastal plain. High-resolution LiDAR topography across the coastal plain reveals a complex landscape with channel patterns that highlight the dynamic response of coastal river systems to shifts in climate. While the southeastern coastal plain was far from the edge of the North American ice sheet during the Last Glacial Maximum, much of the relict floodplain morphology is comprised of braided plains with parabolic dunes oriented ENE, large meander scars and sandy scroll bars. These features record a transition from low profile, episodic braided systems during the glacial period to unusually large, overfit meandering systems during deglaciation, and subsequently to the smaller, modern meandering system. Focusing on the confluence of the Great Pee Dee and Little Pee Dee Rivers, we collected a suite of geophysical data (Chirp subbottom and multibeam bathymetry in the river and Ground Penetrating Radar (GPR) across the floodplain and dunes) and geologic samples to examine the 3-D subsurface architecture of this fluvial system. Preliminary analysis of the Chirp subbottom and GPR data reveals a series of buried surfaces that appear to represent multiple fluvial terraces dissected by paleochannels that may record several cycles of glaciation accompanied by shifts in fluvial morphology. Sediment samples collected along these subsurface profiles will be correlated with the geophysical data to provide age constraints on the timing of channel migration. These newly acquired datasets have been integrated with pre-existing high resolution LiDAR topography data and regional orthophotographs to create a detailed three-dimensional visualization of the study area.

  17. Job Prospects for E/E Engineers.

    ERIC Educational Resources Information Center

    Basta, Nicholas

    1987-01-01

    Discusses the trends in employment in the electrical/electronics (E/E) engineering industry. States that although the number of E/E graduates grew at a rate of over 11 percent from 1985 to 1986, the economy continues to be the major determinant in the job outlook in the field. (TW)

  18. Job Prospects for E/E Engineers.

    ERIC Educational Resources Information Center

    Basta, Nicholas

    1986-01-01

    Reviews job prospects for electrical/electronic E/E engineers, indicating that 1985 was not a banner year due to problems in the semiconductor manufacturing industries and in telecommunications. Also indicates that an upturn is expected for 1986 E/E graduates. (JN)

  19. Job Prospects for E/E Engineers.

    ERIC Educational Resources Information Center

    Basta, Nicholas

    1986-01-01

    Reviews job prospects for electrical/electronic E/E engineers, indicating that 1985 was not a banner year due to problems in the semiconductor manufacturing industries and in telecommunications. Also indicates that an upturn is expected for 1986 E/E graduates. (JN)

  20. Job Prospects for E/E Engineers.

    ERIC Educational Resources Information Center

    Basta, Nicholas

    1987-01-01

    Discusses the trends in employment in the electrical/electronics (E/E) engineering industry. States that although the number of E/E graduates grew at a rate of over 11 percent from 1985 to 1986, the economy continues to be the major determinant in the job outlook in the field. (TW)

  1. Establishment and characterization of duck embryo epithelial (DEE) cell line and its use as a new approach toward DHAV-1 propagation and vaccine development.

    PubMed

    Wang, Wenxiu; Said, Abdelrahman; Wang, Yan; Fu, Qiang; Xiao, Yueqiang; Lv, Sufang; Shen, Zhiqiang

    2016-02-02

    The primary cell culture was derived from duck embryonic tissue, digested with collagenase type I. The existence of cell colonies with epithelial-like morphology, named duck embryo epithelial (DEE), were purified and optimally maintained at 37°C in M199 medium supplemented with 5% fetal bovine serum. The purified cells were identified as epithelial cell line by detecting Keratin-18 expression using immunofluorescence assay. Our findings demonstrated that DEE cell line can be propagated in culture with (i) a great capacity to adhere, (ii) a great proliferation activity, and (iii) a population doubling time of approximately 18h. Chromosomal features of the DEE cell line were remained constant after the 50th passage. Further characterizations of DEE cell line showed that cell line can normally be grown even after several passages and never converted to tumorigenic cells either in vitro or in vivo study. Susceptibility of DEE cell line was determined for transfection and duck hepatitis A type 1 virus (DHAV-1)-infection. Interestingly, the 50% egg lethal dose (ELD50) of the propagated virus in DEE cell line was higher than ELD50 of the propagated virus in embryonated eggs. Finally, DEE cell line was evaluated to be used as a candidate for DHAV-1 vaccine development. Our results showed that the propagated DHAV-1 vaccine strain SDE in DEE cell line was able to protect ducklings against DHAV-1 challenge. Taken together, our findings suggest that the DEE cell line can serve as a valuable tool for DHAV-1 propagation and vaccine production.

  2. Synthesis and characterization of endcapped C18 stationary phases using a silica hydride intermediate.

    PubMed

    Pesek, Joseph J; Matyska, Maria T; Yu, Raymond J

    2002-02-22

    The effect of endcapping on an octdecyl bonded phase synthesized by the silanization/hydrosilation method is investigated. The endcapping reagent is a 1:1 molar ratio of trimethylchlorosilane (TMCS) and hexamethyldisilizane (HMDS). Two approaches for endcapping are possible for this synthetic method that produces a silica hydride intermediate: bonding of TMCS-HMDS after silanization (on the hydride intermediate) or after hydrosilation (on the C18 product stationary phase). The use of TMCS-HMDS is designed to eliminate the few remaining silanols on the silica hydride intermediate. The endcapping process is characterized spectroscopically by diffuse reflectance infrared Fourier transform (DRIFT), 29Si cross polarization magic angle spinning nuclear magnetic resonance spectroscopy (CP-MAS-NMR) and 13-C-CP-MAS-NMR. The octadecyl bonded phases are characterized chromatographically by measuring the capacity factors of several hydrophobic and basic test solutes as well as the separation factors among various solute pairs. Finally, long-term stability tests are done on both products at high and low pH.

  3. Exploring the effect of conducting endcaps on the Princeton MRI Experiment

    NASA Astrophysics Data System (ADS)

    Caspary, Kyle; Gilson, Erik; Goodman, Jeremy; Ji, Hantao; Sloboda, Peter

    2016-10-01

    The magnetorotational instability (MRI) is believed to be the primary mechanism which generates the turbulence required to explain the rapid accretion rates observed in some magnetized accretion disks. The Princeton MRI experiment is a modified Taylor-Couette device which uses GaInSn eutectic as a working fluid to study rotating MHD Flows. Diagnostics include Ultrasound Doppler Velocimetry (UDV) for flow profile measurements and an array of magnetic Hall sensors located on the inner and outer cylinders. Results are presented from experiments with conducting endcaps which were installed in order to increase the saturation amplitude of the MRI signal and the angular momentum coupling to the fluid. The effect of conducting endcaps on Shercliff layer instabilities is examined with a comparison to previous results with insulating endcaps. With sufficient velocity shear and magnetic field strength, the fluid exerts a torque on the conducting endcaps due to a coupling via the magnetic field. The onset criterion of this torque is currently under investigation. Motivated by results from the spectral/finite-element code SFEMaNS, the inner ring speed was varied in order to minimize the contribution to the radial magnetic field measurements from non-MRI sources such as Ekman flows.

  4. Site-specific multipoint fluorescence measurement system with end-capped optical fibers.

    PubMed

    Song, Woosub; Moon, Sucbei; Lee, Byoung-Cheol; Park, Chul-Seung; Kim, Dug Young; Kwon, Hyuk Sang

    2011-07-10

    We present the development and implementation of a spatially and spectrally resolved multipoint fluorescence correlation spectroscopy (FCS) system utilizing multiple end-capped optical fibers and an inexpensive laser source. Specially prepared end-capped optical fibers placed in an image plane were used to both collect fluorescence signals from the sample and to deliver signals to the detectors. The placement of independently selected optical fibers on the image plane was done by monitoring the end-capped fiber tips at the focus using a CCD, and fluorescence from specific positions of a sample were collected by an end-capped fiber, which could accurately represent light intensities or spectral data without incurring any disturbance. A fast multipoint spectroscopy system with a time resolution of ∼1.5 ms was then implemented using a prism and an electron multiplying charge coupled device with a pixel binning for the region of interest. The accuracy of our proposed system was subsequently confirmed by experimental results, based on an FCS analysis of microspheres in distilled water. We expect that the proposed multipoint site-specific fluorescence measurement system can be used as an inexpensive fluorescence measurement tool to study many intracellular and molecular dynamics in cell biology. © 2011 Optical Society of America

  5. Kaleri holds the top endcap for the TVIS Gyroscope in SM during Expedition 8

    NASA Image and Video Library

    2003-12-09

    ISS008-E-07385 (9 December 2003) --- Cosmonaut Alexander Y. Kaleri, Expedition 8 flight engineer, holds the top end-cap for the Treadmill Vibration Isolation System (TVIS) gyroscope in the Zvezda Service Module on the International Space Station (ISS). Kaleri represents Rosaviakosmos.

  6. Synthesis and Electronic Structure of Ru2(Xap)4(Y-gem-DEE) Type Compounds: Effect of Cross-Conjugation.

    PubMed

    Forrest, William P; Choudhuri, Mohommad M R; Kilyanek, Stefan M; Natoli, Sean N; Prentice, Boone M; Fanwick, Phillip E; Crutchley, Robert J; Ren, Tong

    2015-08-03

    Reported in this Article are the preparation and characterization of a series of new Ru2(II,III) compounds bearing one cross-conjugated σ-geminal-diethynylethene ligand (gem-DEE), namely, Ru2(Xap)4(Y-gem-DEE) (Xap = N,N'-anilinopyridinate (ap) or 2-(3,5-dimethoxy)anilinopyridinate (DiMeOap), and Y = Si(i)Pr3 (1) or H (2)) and [Ru2(ap)4]2(μ-gem-DEE) (3). Compounds 1-3 were characterized by spectroscopic and voltammetric techniques as well as the single crystal X-ray diffraction study of 2a. The X-ray structural data of 2a and the spectroscopic/voltammetric data of compounds 1 and 2 indicate that the gem-DEE ligands are similar to simple alkynyls in their effects on the molecular and electronic structures of the Ru2(Xap)4 moiety. Similar to the previously studied [Ru2(ap)4]2(μ-C2n) type compounds, dimer 3 exhibits pairwise 1e(-) oxidations and reductions, albeit the potential splits within the pair (ΔE1/2) are significantly smaller than those of [Ru2(ap)4]2(μ-C4). The electronic absorption spectra of the reduced and oxidized derivatives of 1a and 3 were determined using spectroelectrochemistry methods. No discernible intervalence charge transfer transition (IVCT) was detected in the near-IR spectrum for either 3(-) or 3(+), suggesting that the Ru2-Ru2 coupling in these mixed-valence states is weak. DFT calculations on a model compound of 3 yielded six singly occupied molecular orbitals (SOMOs), which have Ru2 contributions similar to those previously calculated for the [Ru2(ap)4]2(μ-C2n) type compounds. Among six SOMOs, SOMO-2 is the only one containing substantial dπ-π(gem-DEE) character across the entire Ru2-μ-gem-DEE-Ru2 linkage, which explains the weakened Ru2-Ru2 coupling.

  7. Experimental Study of the Thermodynamic Properties of Diethyl Ether (DEE) at Saturation

    NASA Astrophysics Data System (ADS)

    Polikhronidi, N. G.; Abdulagatov, I. M.; Batyrova, R. G.; Stepanov, G. V.; Ustuzhanin, E. E.; Wu, J. T.

    2011-03-01

    The isochoric heat capacities {({C_{V1}^' ,{C_{V1}^'',{C_{V2}^',{C_{V2}^'')}, saturation densities ({ρ _S^' and ({ρ_S^'')}), vapor pressures ( P S), thermal-pressure coefficients {γ_V=left({partial P/partial T}right)_V}, and first temperature derivatives of the vapor pressure γ S = (d P S/d T) of diethyl ether (DEE) on the liquid-gas coexistence curve near the critical point have been measured with a high-temperature and high-pressure nearly constant-volume adiabatic piezo-calorimeter. The measurements of {({C_{V1}^' ,{C_{V1}^'',{C_{V2}^',{C_{V2}^'')} were made in the liquid and vapor one- and two-phase regions along the coexistence curve. The calorimeter was additionally supplied with a calibrated extensometer to accurately and simultaneously measure the PVT, C V VT, and thermal-pressure coefficient, γ V , along the saturation curve. The measurements were carried out in the temperature range from 416 K to 466.845 K (the critical temperature) for 17 liquid and vapor densities from 212.6 kg · m-3 to 534.6 kg · m-3. The quasi-static thermo- (reading of PRT, T - τ plot) and baro-gram (readings of the tensotransducer, P - τ plot) techniques were used to accurately measure the phase-transition parameters ( P S , ρ S , T S) and γ V . The total experimental uncertainty of density ( ρ S), pressure ( P S), temperature ( T S), isochoric heat capacities {({C_{V1}^' ,{C_{V1}^'',{C_{V2}^',{C_{V2}^'')}, and thermal-pressure coefficient, γ V , were estimated to be 0.02 % to 0.05 %, 0.05 %, 15 mK, 2 % to 3 %, and 0.12 % to 1.5 %, respectively. The measured values of saturated caloric {({C_{V1}^' ,{C_{V1}^'',{C_{V2}^',{C_{V2}^'')} and saturated thermal ( P S, ρ S, T S) properties were used to calculate other derived thermodynamic properties C P , C S, W, K T , P int, Δ H vap, and {left({partial V/partial T}right)_P^' of DEE near the critical point. The second temperature derivatives of the vapor pressure, (d2 P S/d T 2), and chemical potential, (d2 μ/d T 2), were

  8. Radio frequency cavity analysis, measurement, and calibration of absolute Dee voltage for K-500 superconducting cyclotron at VECC, Kolkata

    NASA Astrophysics Data System (ADS)

    Som, Sumit; Seth, Sudeshna; Mandal, Aditya; Paul, Saikat; Duttagupta, Anjan

    2013-02-01

    Variable Energy Cyclotron Centre has commissioned a K-500 superconducting cyclotron for various types of nuclear physics experiments. The 3-phase radio-frequency system of superconducting cyclotron has been developed in the frequency range 9-27 MHz with amplitude and phase stability of 100 ppm and ±0.20, respectively. The analysis of the RF cavity has been carried out using 3D Computer Simulation Technology (CST) Microwave Studio code and various RF parameters and accelerating voltages ("Dee" voltage) are calculated from simulation. During the RF system commissioning, measurement of different RF parameters has been done and absolute Dee voltage has been calibrated using a CdTe X-ray detector along with its accessories and known X-ray source. The present paper discusses about the measured data and the simulation result.

  9. Radio frequency cavity analysis, measurement, and calibration of absolute Dee voltage for K-500 superconducting cyclotron at VECC, Kolkata.

    PubMed

    Som, Sumit; Seth, Sudeshna; Mandal, Aditya; Paul, Saikat; Duttagupta, Anjan

    2013-02-01

    Variable Energy Cyclotron Centre has commissioned a K-500 superconducting cyclotron for various types of nuclear physics experiments. The 3-phase radio-frequency system of superconducting cyclotron has been developed in the frequency range 9-27 MHz with amplitude and phase stability of 100 ppm and ±0.2(0), respectively. The analysis of the RF cavity has been carried out using 3D Computer Simulation Technology (CST) Microwave Studio code and various RF parameters and accelerating voltages ("Dee" voltage) are calculated from simulation. During the RF system commissioning, measurement of different RF parameters has been done and absolute Dee voltage has been calibrated using a CdTe X-ray detector along with its accessories and known X-ray source. The present paper discusses about the measured data and the simulation result.

  10. Acoustic Mechanisms of a Species-Based Discrimination of the chick-a-dee Call in Sympatric Black-Capped (Poecile atricapillus) and Mountain Chickadees (P. gambeli).

    PubMed

    Guillette, Lauren M; Farrell, Tara M; Hoeschele, Marisa; Sturdy, Christopher B

    2010-01-01

    Previous perceptual research with black-capped and mountain chickadees has demonstrated that these species treat each other's namesake chick-a-dee calls as belonging to separate, open-ended categories. Further, the terminal dee portion of the call has been implicated as the most prominent species marker. However, statistical classification using acoustic summary features suggests that all note-types contained within the chick-a-dee call should be sufficient for species classification. The current study seeks to better understand the note-type based mechanisms underlying species-based classification of the chick-a-dee call by black-capped and mountain chickadees. In two, complementary, operant discrimination experiments, both species were trained to discriminate the species of the signaler using either entire chick-a-dee calls, or individual note-types from chick-a-dee calls. In agreement with previous perceptual work we find that the D note had significant stimulus control over species-based discrimination. However, in line with statistical classifications, we find that all note-types carry species information. We discuss reasons why the most easily discriminated note-types are likely candidates to carry species-based cues.

  11. Acoustic Mechanisms of a Species-Based Discrimination of the chick-a-dee Call in Sympatric Black-Capped (Poecile atricapillus) and Mountain Chickadees (P. gambeli)

    PubMed Central

    Guillette, Lauren M.; Farrell, Tara M.; Hoeschele, Marisa; Sturdy, Christopher B.

    2010-01-01

    Previous perceptual research with black-capped and mountain chickadees has demonstrated that these species treat each other's namesake chick-a-dee calls as belonging to separate, open-ended categories. Further, the terminal dee portion of the call has been implicated as the most prominent species marker. However, statistical classification using acoustic summary features suggests that all note-types contained within the chick-a-dee call should be sufficient for species classification. The current study seeks to better understand the note-type based mechanisms underlying species-based classification of the chick-a-dee call by black-capped and mountain chickadees. In two, complementary, operant discrimination experiments, both species were trained to discriminate the species of the signaler using either entire chick-a-dee calls, or individual note-types from chick-a-dee calls. In agreement with previous perceptual work we find that the D note had significant stimulus control over species-based discrimination. However, in line with statistical classifications, we find that all note-types carry species information. We discuss reasons why the most easily discriminated note-types are likely candidates to carry species-based cues. PMID:21833284

  12. Nephrotoxic effects of aquoeus extract U & Dee Sweet Bitter (a Nigerian herbal remedy) in male albino rats.

    PubMed

    Ezejiofor, N A; Maduagwuna, N; Igwebuike, Onyiaorah Victor; Hussaini, D C; Orisakwe, O E

    2008-01-01

    The effect of the extract of U & Dee Sweet Bitter, a Nigerian herbal remedy on the kidney was investigated in matured Wistar albino rats. Twenty male albino rats were allocated into four dose groups of five rats each, namely 0.00, 539, 1077, 1616 mg/kg of the herbal product orally for 90 days. Animals had access to deionized water and were fed ad libitum with rat chow for 90 days. The feed and fluid consumption of the animals were measured on daily basis, and the body weight was measured weekly. After 90 days, the animals were anaesthetized with ether, bled, sacrificed, kidney excised, and weighed. The parameters measured included food and fluid intake, body weight, absolute and relative weight of the kidney. A nonsignificant increase (p > .05) in feed and fluid intake occurred in all treated animals and a significant decrease (p < .05) in absolute weight of the kidney in all the treated animals when compared with the control. The administration of 539, 1077, and 1616mg/kg of U & Dee Sweet Bitter caused a significant (p < .05) dose-dependent increase in creatinine, whereas a significant dose-dependent decrease for urea was noted compared with the control. Histological study showed that U & Dee Sweet Bitter at all doses caused renal pathologic changes that include tubular necrosis, inflammation of the interstitial and glomerulus, and disorganization of the entire architecture. The results are indicative of nephrotoxicity.

  13. Stratal architecture of inland dunes along the Pee Dee River, South Carolina

    NASA Astrophysics Data System (ADS)

    Wright, E. E.; Hill, J. C.; Harris, S.

    2011-12-01

    Changing climate conditions during the late Pleistocene allowed for eolian dune formation adjacent to riverine floodplains within South Carolina's coastal plain. As described from aerial photography, these paleo-parabolic dunes have a northeastern orientation and are found along the eastern side of riverine systems. This continuing study uses LiDAR and ground penetrating radar (GPR) data to better understand the geomorphology and internal architecture of a dune field formed between the Pee Dee and Waccamaw Rivers in northeastern South Carolina. Morphology observed in the LiDAR data indicates both isolated and composite dunes of less than a 1000m in length and 6m in height and GPR profiles collected across these features reveal a common northeasterly dip for larger foreset bedding with several reactivation surfaces. In addition to remotely sensed data, subsurface sediment samples will be used to better constrain the development of this dune field and the relationship to differing sediment supply and paleo-climatic conditions during the last glacial period.

  14. John Dee and the alchemists: Practising and promoting English alchemy in the Holy Roman Empire

    PubMed Central

    Rampling, Jennifer M.

    2012-01-01

    This paper investigates John Dee’s relationship with two kinds of alchemist: the authorities whose works he read, and the contemporary practitioners with whom he exchanged texts and ideas. Both strands coincide in the reception of works attributed to the famous English alchemist, George Ripley (d. c. 1490). Dee’s keen interest in Ripley appears from the number of transcriptions he made of ‘Ripleian’ writings, including the Bosome book, a manuscript discovered in 1574 and believed to have been written in Ripley’s own hand. In 1583, Dee and his associate Edward Kelley left England for East Central Europe, taking with them a proportion of Dee’s vast library, including alchemical books—the contents of which would soon pique the interest of continental practitioners. Kelley used Ripley’s works, including the Bosome book, not only as sources of practical information, but as a means of furthering his own relationships with colleagues and patrons: transactions that in turn influenced Ripley’s posthumous continental reception. The resulting circulation of texts allows us to trace, with unusual precision, the spread of English alchemical ideas in the Holy Roman Empire from the late sixteenth century.

  15. Anion induced modulation of self-assembly and optical properties in urea end-capped oligo(p-phenylenevinylene)s.

    PubMed

    Varghese, Reji; George, Subi J; Ajayaghosh, Ayyappanpillai

    2005-02-07

    The non-emissive supramolecular assembly of urea end-capped oligo(p-phenylenevinylene) flourophores turned strongly emissive in the presence of tetrabutylammonium flouride which has implications in the anion controlled design of supramolecular architectures with tunable emission properties.

  16. 31 CFR 353.30 - Series EE bonds.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Series EE bonds. 353.30 Section 353... BONDS, SERIES EE AND HH Interest § 353.30 Series EE bonds. Series EE bonds are issued at a discount. The... Department of the Treasury Circular, Public Debt Series No. 1-80 (31 CFR part 351)....

  17. 31 CFR 353.30 - Series EE bonds.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Series EE bonds. 353.30 Section 353.30... BONDS, SERIES EE AND HH Interest § 353.30 Series EE bonds. Series EE bonds are issued at a discount. The... Department of the Treasury Circular, Public Debt Series No. 1-80 (31 CFR part 351)....

  18. 31 CFR 353.30 - Series EE bonds.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Series EE bonds. 353.30 Section 353... SAVINGS BONDS, SERIES EE AND HH Interest § 353.30 Series EE bonds. Definitive Series EE bonds were issued... values is found in Department of the Treasury Circular, Fiscal Service Series No. 1-80 (31 CFR part 351)....

  19. Separation of e+e- → e+e- and e+e- → π+π- events using SND detector calorimeter

    NASA Astrophysics Data System (ADS)

    Achasov, M. N.; Beloborodov, K. I.; Kupich, A. S.

    2017-01-01

    The technique of discrimination of the e+e- → e+e- and e+e- → π+π- events in energy range 0.5 < √s < 1 GeV by energy deposition in the calorimeter of SND detector was developed by applying machine learning method. Identification efficiency for e+e- → e+e- and e+e- → π+π- events in the range from 99.3 to 99.8% has been achived.

  20. Effect of the endcapping of reversed-phase high-performance liquid chromatography adsorbents on the adsorption isotherm

    SciTech Connect

    Gritti, Fabrice; Guiochon, Georges A

    2005-09-01

    The retention mechanisms of n-propylbenzoate, 4-t ert-butylphenol, and caffeine on the endcapped Symmetry-C{sub 18} and the non-endcapped Resolve-C{sub 18} are compared. The adsorption isotherms were measured by frontal analysis (FA), using as the mobile phase mixtures of methanol or acetonitrile and water of various compositions. The isotherm data were modeled and the adsorption energy distributions calculated. The surface heterogeneity increases faster with decreasing methanol concentration on the non-endcapped than on the endcapped adsorbent. For instance, for methanol concentrations exceeding 30% (v/v), the adsorption of caffeine is accounted for by assuming three and two different types of adsorption sites on Resolve-C{sub 18} and Symmetry-C{sub 18}, respectively. This is explained by the effect of the mobile phase composition on the structure of the C{sub 18}-bonded layer. The bare surface of bonded silica appears more accessible to solute molecules at high water contents in the mobile phase. On the other hand, replacing methanol by a stronger organic modifier like acetonitrile dampens the differences between non-endcapped and endcapped stationary phase and decreases the degree of surface heterogeneity of the adsorbent. For instance, at acetonitrile concentrations exceeding 20%, the surface appears nearly homogeneous for the adsorption of caffeine.

  1. Synthesis and evaluation of new spacers for use as dsDNA endcaps

    PubMed Central

    Ng, Pei-Sze; Laing, Brian M.; Balasundarum, Ganesan; Pingle, Maneesh; Friedman, Alan; Bergstrom, Donald E.

    2010-01-01

    A series of aliphatic and aromatic spacer molecules designed to cap the ends of DNA duplexes have been synthesized. The spacers were converted into dimethoxytrityl protected phosphoramidites as synthons for oligonucleotides synthesis. The effect of the spacers on the stability of short DNA duplexes was assessed by melting temperature studies. Endcaps containing amide groups were found to be less stabilizing than the hexaethylene glycol spacer. Endcaps containing either a terthiophene or a naphthalene tetracarboxylic acid dimide were found to be significantly more stabilizing. The former showed a preference for stacking above an A•T base pair. Spacers containing only methylene (-CH2-) and amide (-CONH-) groups interact weakly with DNA and consequently may be optimal for applications that require minimal influence on DNA structure but require a way to hold the ends of double-stranded DNA together. PMID:20715857

  2. Synthesis and evaluation of new spacers for use as dsDNA end-caps.

    PubMed

    Ng, Pei-Sze; Laing, Brian M; Balasundarum, Ganesan; Pingle, Maneesh; Friedman, Alan; Bergstrom, Donald E

    2010-08-18

    A series of aliphatic and aromatic spacer molecules designed to cap the ends of DNA duplexes have been synthesized. The spacers were converted into dimethoxytrityl-protected phosphoramidites as synthons for oligonucleotides synthesis. The effect of the spacers on the stability of short DNA duplexes was assessed by melting temperature studies. End-caps containing amide groups were found to be less stabilizing than the hexaethylene glycol spacer. End-caps containing either a terthiophene or a naphthalene tetracarboxylic acid diimide were found to be significantly more stabilizing. The former showed a preference for stacking above an A*T base pair. Spacers containing only methylene (-CH(2)-) and amide (-CONH-) groups interact weakly with DNA and consequently may be optimal for applications that require minimal influence on DNA structure but require a way to hold the ends of double-stranded DNA together.

  3. Hadronic Shower Validation Experience for the ATLAS End-Cap Calorimeter

    SciTech Connect

    Kiryunin, A. E.; Salihagic, D.

    2007-03-19

    Validation of GEANT4 hadronic physics models is carried out by comparing experimental data from beam tests of modules of the ATLAS end-cap calorimeters with GEANT4 based simulations. Two physics lists (LHEP and QGSP) for the simulation of hadronic showers are evaluated. Calorimeter performance parameters like the energy resolution and response for charged pions and shapes of showers are studied. Comparison with GEANT3 predictions is done as well.

  4. Performance of the ATLAS electromagnetic calorimeter end-cap module 0

    NASA Astrophysics Data System (ADS)

    Aubert, B.; Ballansat, J.; Bazan, A.; Beaugiraud, B.; Boniface, J.; Chollet, F.; Colas, J.; Delebecque, P.; Di Ciaccio, L.; Dumont-Dayot, N.; El Kacimi, M.; Gaumer, O.; Ghez, P.; Girard, C.; Gouanère, M.; Kambara, H.; Jérémie, A.; Jézéquel, S.; Lafaye, R.; Leflour, T.; Le Maner, C.; Lesueur, J.; Massol, N.; Moynot, M.; Neukermans, L.; Perrodo, P.; Perrot, G.; Poggioli, L.; Prast, J.; Przysiezniak, H.; Riccadona, X.; Sauvage, G.; Thion, J.; Wingerter-Seez, I.; Zitoun, R.; Zolnierowski, Y.; Chen, H.; Citterio, M.; Farrell, J.; Gordon, H.; Hackenburg, B.; Hoffman, A.; Kierstead, J.; Lanni, F.; Leite, M.; Lissauer, D.; Ma, H.; Makowiecki, D.; Radeka, V.; Rahm, D.; Rajagopalan, S.; Rescia, S.; Stumer, I.; Takai, H.; Yip, K.; Benchekroun, D.; Driouichi, C.; Hoummada, A.; Hakimi, M.; Stroynowski, R.; Ye, J.; Beck Hansen, J.; Belymam, A.; Bremer, J.; Chevalley, J. L.; Fassnacht, P.; Gianotti, F.; Hervas, L.; Marin, C. P.; Pailler, P.; Schilly, P.; Seidl, W.; Vossebeld, J.; Vuillemin, V.; Clark, A.; Efthymiopoulos, I.; Moneta, L.; Belhorma, B.; Collot, J.; Ferrari, A.; Gallin-Martel, M. L.; Hostachy, J. Y.; Martin, P.; Ohlsson-Malek, F.; Saboumazrag, S.; Ban, J.; Cartiglia, N.; Cunitz, H.; Dodd, J.; Gara, A.; Leltchouk, M.; Negroni, S.; Parsons, J. A.; Seman, M.; Simion, S.; Sippach, W.; Willis, W.; Barreiro, F.; Garcia, G.; Labarga, L.; Rodier, S.; del Peso, J.; Alexa, C.; Barrillon, P.; Benchouk, C.; Chekhtman, A.; Dinkespiler, B.; Djama, F.; Duval, P. Y.; Henry-Couannier, F.; Hinz, L.; Jevaud, M.; Karst, P.; Le Van Suu, A.; Martin, L.; Martin, O.; Mirea, A.; Monnier, E.; Nagy, E.; Nicod, D.; Olivier, C.; Pralavorio, P.; Repetti, B.; Raymond, M.; Sauvage, D.; Tisserant, S.; Toth, J.; Wielers, M.; Battistoni, G.; Carminati, L.; Costa, G.; Delmastro, M.; Fanti, M.; Mandelli, L.; Mazzanti, M.; Tartarelli, G. F.; Aulchenko, V.; Kazanin, V.; Kolachev, G.; Malyshev, V.; Maslennikov, A.; Pospelov, G.; Snopkov, R.; Shousharo, A.; Talyshev, A.; Tikhonov, Yu; Augé, E.; Bourdarios, C.; Breton, D.; Bonivento, W.; Cros, P.; de La Taille, C.; Falleau, I.; Fournier, D.; Guilhem, G.; Hassani, S.; Jacquier, Y.; Kordas, K.; Macé, G.; Merkel, B.; Noppe, J. M.; Parrour, G.; Pétroff, P.; Puzo, P.; Richer, J. P.; Rousseau, D.; Seguin-Moreau, N.; Serin, L.; Tocut, V.; Veillet, J. J.; Zerwas, D.; Astesan, F.; Bertoli, W.; Camard, A.; Canton, B.; Fichet, S.; Hubaut, F.; Imbault, D.; Lacour, D.; Laforge, B.; Le Dortz, O.; Martin, D.; Nikolic-Audit, I.; Orsini, F.; Rossel, F.; Schwemling, P.; Cleland, W.; McDonald, J.; Abouelouafa, E. M.; Ben Mansour, A.; Cherkaoui, R.; El Mouahhidi, Y.; Ghazlane, H.; Idrissi, A.; Belorgey, J.; Bernard, R.; Chalifour, M.; Le Coroller, A.; Ernwein, J.; Mansoulié, B.; Renardy, J. F.; Schwindling, J.; Taguet, J.-P.; Teiger, J.; Clément, C.; Lund-Jensen, B.; Lundqvist, J.; Megner, L.; Pearce, M.; Rydstrom, S.; Egdemir, J.; Engelmann, R.; Hoffman, J.; McCarthy, R.; Rijssenbeek, M.; Steffens, J.; This paper is dedicated to the memory of our colleague Dominique Sauvage, actively involved in the detector construction; beam test activities, who died accidentaly on March 16, 2002.

    2003-03-01

    The construction and beam test results of the ATLAS electromagnetic end-cap calorimeter pre-production module 0 are presented. The stochastic term of the energy resolution is between 10% and 12.5% GeV1/2 over the full pseudorapidity range. Position and angular resolutions are found to be in agreement with simulation. A global constant term of 0.6% is obtained in the pseudorapidity range 2.5< η<3.2 (inner wheel).

  5. Sensors for the End-cap prototype of the Inner Tracker in the ATLAS Detector Upgrade

    NASA Astrophysics Data System (ADS)

    Benítez, V.; Ullán, M.; Quirion, D.; Pellegrini, G.; Fleta, C.; Lozano, M.; Sperlich, D.; Hauser, M.; Wonsak, S.; Parzefall, U.; Mahboubi, K.; Kuehn, S.; Mori, R.; Jakobs, K.; Bernabeu, J.; García, C.; Lacasta, C.; Marco, R.; Rodriguez, D.; Santoyo, D.; Solaz, C.; Soldevila, U.; Ariza, D.; Bloch, I.; Diez, S.; Gregor, I. M.; Keller, J.; Lohwasser, K.; Peschke, R.; Poley, L.; Brenner, R.; Affolder, A.

    2016-10-01

    The new silicon microstrip sensors of the End-cap part of the HL-LHC ATLAS Inner Tracker (ITk) present a number of challenges due to their complex design features such as the multiple different sensor shapes, the varying strip pitch, or the built-in stereo angle. In order to investigate these specific problems, the ;petalet; prototype was defined as a small End-cap prototype. The sensors for the petalet prototype include several new layout and technological solutions to investigate the issues, they have been tested in detail by the collaboration. The sensor description and detailed test results are presented in this paper. New software tools have been developed for the automatic layout generation of the complex designs. The sensors have been fabricated, characterized and delivered to the institutes in the collaboration for their assembly on petalet prototypes. This paper describes the lessons learnt from the design and tests of the new solutions implemented on these sensors, which are being used for the full petal sensor development. This has resulted in the ITk strip community acquiring the necessary expertise to develop the full End-cap structure, the petal.

  6. Validating Experimental Bedform Dynamics on Cohesive Sand-Mud Beds in the Dee Estuary

    NASA Astrophysics Data System (ADS)

    Baas, Jaco H.; Baker, Megan; Hope, Julie; Malarkey, Jonathan; Rocha, Renata

    2014-05-01

    Recent laboratory experiments and field measurements have shown that small quantities of cohesive clay, and in particular 'sticky' biological polymers, within a sandy substrate dramatically reduce the development rate of sedimentary bedforms, with major implications for sediment transport rate calculations and process interpretations from the sedimentary record. FURTHER INFORMATION Flow and sediment transport predictions from sedimentary structures found in modern estuaries and within estuarine geological systems are impeded by an almost complete lack of process-based knowledge of the behaviour of natural sediments that consist of mixtures of cohesionless sand and biologically-active cohesive mud. Indeed, existing predictive models are largely based on non-organic cohesionless sands, despite the fact that mud, in pure form or mixed with sand, is the most common sediment on Earth and also the most biologically active interface across a range of Earth-surface environments, including rivers and shallow seas. The multidisciplinary COHBED project uses state-of-the-art laboratory and field technologies to measure the erosional properties of mixed cohesive sediment beds and the formation and stability of sedimentary bedforms on these beds, integrating the key physical and biological processes that govern bed evolution. The development of current ripples on cohesive mixed sediment beds was investigated as a function of physical control on bed cohesion versus biological control on bed cohesion. These investigations included laboratory flume experiments in the Hydrodynamics Laboratory (Bangor University) and field experiments in the Dee estuary (at West Kirby near Liverpool). The flume experiments showed that winnowing of fine-grained cohesive sediment, including biological stabilisers, is an important process affecting the development rate, size and shape of the cohesive bedforms. The ripples developed progressively slower as the kaolin clay fraction in the sandy substrate

  7. EE Certification: Making Best Practice Standard Practice

    ERIC Educational Resources Information Center

    Glenn, Joanne M. Lozar

    2006-01-01

    Pursuing environmental education certification is difficult, so why do it? What does it mean to be certified? Who benefits? How? These are just a few of the compelling questions addressed in "EE Certification: Making Best Practice Standard Practice," a new article exploring advancements and challenges in state and national EE…

  8. Rhodes University EE and Sustainability Unit

    ERIC Educational Resources Information Center

    Sisitka, Heila Lotz; Schudel, Ingrid

    2007-01-01

    In the early 1990s, in response to the emphasis laid on environment and development issues by the new South African Constitution, Rhodes University undertook several initiatives such as establishing the first Chair of Environmental Education (EE) in Africa. Another important initiative was the introduction of an open-entry participatory course for…

  9. The biogeochemical reactivity of suspended particulate matter at nested sites in the Dee basin, NE Scotland.

    PubMed

    Dawson, J J C; Adhikari, Y R; Soulsby, C; Stutter, M I

    2012-09-15

    Variation in the organic matter content associated with suspended particulate matter (SPM) is an often overlooked component of carbon cycling within freshwater riverine systems. The potential biogeochemical reactivity of particulate organic carbon (POC) that affect its interactions and fate, i.e. respired and lost to the atmosphere along river continua or ultimately exported to estuarine and oceanic pools was assessed. Eleven contrasting sites draining nested catchments (5-1837 km(2)) in the River Dee basin, NE Scotland were sampled during summer 2008 to evaluate spatio-temporal variations in quantity and quality (biogeochemical reactivity) of SPM during relatively low flow conditions. Mean SPM concentrations increased from 0.21 to 1.22 mg L(-1) between the uppermost and lowest mainstem sites. Individually, POC concentrations ranged from 0.08 to 0.55 mg L(-1) and accounted for ca. 3-15% of total aqueous organic carbon transported. The POC content was partitioned into autotrophic (2.78-73.0 mg C g(-1) SPM) and detrital (119-388 mg C g(-1) SPM) biomass carbon content. The particulate respired CO(2)-C as a % of the total carbon associated with SPM, measured by MicroResp™ over 18 h, varied in recalcitrance from 0.49% at peat-dominated sites to 3.20% at the lowermost mainstem site. Significant (p<0.05) relationships were observed between SPM biogeochemical reactivity measures (% respired CO(2)-C; chlorophyll α; bioavailable-phosphorus) and arable and improved grassland area, associated with increasing biological productivity downstream. Compositional characteristics and in-stream processing of SPM appear to be related to contributory land use pressures, that influence SPM characteristics and biogeochemistry (C:N:P stoichiometry) of its surrounding aqueous environment. As moorland influences declined, nutrient inputs from arable and improved grasslands increasingly affected the biogeochemical content and reactivity of both dissolved and particulate matter. This

  10. Water resources of the Yadkin-Pee Dee River Basin, North Carolina

    USGS Publications Warehouse

    Fish, Robert Eugene; LeGrand, H.E.; Billingsley, G.A.

    1957-01-01

    Sufficient water is available in the basin of the Yadkin and Pee Dee Rivers to meet present requirements and those for many years to come if water use increases at about the present rate. Data presented in this report show that the average annual streamflow from approximately 82 percent of the basin area during the 25-year period, 1929-53, was about 6,200 mgd, representing essentially the total available water supply. Comparison of the available water supply to the estimated withdrawal use (excluding water power) of both surface and ground water of 600 mgd indicates the relative utilization of the water resources of the basin at present. If proper pollution controls are observed and practiced so that water in the various streams may be reused several times, the potential water available is even greater than indicated by the above comparison. Preliminary studies indicate that the quantity of water now being withdrawn from ground-water reservoirs in the basin is only a fraction of the total that may be obtained from this source. Twenty-eight of the 64 municipalities having public water-supply systems use surface water; however, as the largest cities in the area use surface supplies, about 85 percent of the water used for public supplies is from surface sources. Of the 20 complete-record stream-gaging stations now in operation in this area 7 have been in operation for 24 years or longer. Periodic measurements of the rate of flow have been made at 31 additional sites on streams scattered widely over the basin. All available streamflow data including those for 1953 are summarized in either graphic or tabular form, or both. Because of the critically low flows occurring during the drought of 1954, several illustrations include data for 1954 and the early months of 1955 for comparison with the minima of previous years. Adequate water for domestic use is available from wells throughout the basin. The consolidated rocks of the Piedmont furnish water for small industries and

  11. A sandwiched piezoelectric transducer with flex end-caps for energy harvesting in large force environments

    NASA Astrophysics Data System (ADS)

    Kuang, Yang; Daniels, Alice; Zhu, Meiling

    2017-08-01

    This paper presents a sandwiched piezoelectric transducer (SPT) for energy harvesting in large force environments with increased load capacity and electric power output. The SPT uses (1) flex end-caps to amplify the applied load force so as to increase its power output and (2) a sandwiched piezoelectric-substrate structure to reduce the stress concentration in the piezoelectric material so as to increase the load capacity. A coupled piezoelectric-circuit finite element model (CPC-FEM) was developed, which is able to directly predict the electric power output of the SPT connected to a load resistor. The CPC-FEM was used to study the effects of various parameters of the SPT on the performance to obtain an optimal design. These parameters included the substrate thickness, the end-cap material and thickness, the electrode length, the joint length, the end-cap internal angle and the PZT thickness. A prototype with optimised parameters was tested on a loading machine, and the experimental results were compared with simulation. A good agreement was observed between simulation and experiment. When subjected to a 1 kN 2 Hz sinusoidal force applied by the loading machine, the SPT produced an average power of 4.68 mW. The application of the SPT as a footwear energy harvester was demonstrated by fitting the SPT into a boot and performing the tests on a treadmill, and the SPT generated an average power of 2.5 mW at a walking speed of 4.8 km h-1.

  12. 31 CFR 353.30 - Series EE bonds.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Series EE bonds. 353.30 Section 353.30... BONDS, SERIES EE AND HH Interest § 353.30 Series EE bonds. Definitive Series EE bonds were issued at a... found in Department of the Treasury Circular, Public Debt Series No. 1-80 (31 CFR part 351)....

  13. 31 CFR 353.30 - Series EE bonds.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Series EE bonds. 353.30 Section 353.30... BONDS, SERIES EE AND HH Interest § 353.30 Series EE bonds. Definitive Series EE bonds were issued at a... found in Department of the Treasury Circular, Public Debt Series No. 1-80 (31 CFR part 351)....

  14. The synthesis, characterization and thermal chemistry of modified norbornenyl PMR endcaps

    NASA Technical Reports Server (NTRS)

    Sukenik, C. N.; Ritchey, W. M.; Malhotra, V.; Varde, U.

    1985-01-01

    As part of a program to further the understanding of the polymerization of Nadic-Endcapped PMR systems, a series of model Norbornenyl-Imides has been synthesized and their thermal behavior explored. Their syntheses and characterizations as well as their rearrangement and polymerization chemistry are described. Monomer isomerization at temperatures as low as 125 C and oligomer formation at somewhat higher temperatures are observed. Approximate relative rates for competing isomerization pathways are established and some information is obtained about the details of oligomer formation. The relationship of this data to current PMR systems is briefly discussed.

  15. Case for an EeV Gravitino

    NASA Astrophysics Data System (ADS)

    Dudas, Emilian; Mambrini, Yann; Olive, Keith A.

    2017-08-01

    We consider the possibility that supersymmetry is broken above the inflationary mass scale and that the only "low" energy remnant of supersymmetry is the gravitino with a mass of the order of the EeV scale. The gravitino in this class of models becomes a candidate for the dark matter of the Universe. To avoid the overproduction of gravitinos from the decays of the next-to-lightest supersymmetric particle we argue that the supersymmetric spectrum must lie above the inflationary mass scale (MSUSY>10-5MP˜1 013 GeV ). Since m3 /2≃MSUSY2/MP , we expect m3 /2≳0.2 EeV . Cosmological constraints then predict a relatively large reheating temperature between 1 010 and 1 012 GeV .

  16. EE Cep observations requested for upcoming eclipse

    NASA Astrophysics Data System (ADS)

    Waagen, Elizabeth O.

    2014-07-01

    The AAVSO requests observations for the upcoming eclipse of EE Cephei, a long-period eclipsing variable. EE Cep has a period of 2,050 days, and shows strong variations in the eclipse light curve from one event to the next. Observations are needed to study the morphology of the upcoming eclipse, which will be used to better understand the shape of the eclipsing disk and how it precesses. Mid-eclipse is predicted to be August 23, 2014, but the early stages of the eclipse may begin as much as a month earlier. EE Cep is being observed by a number of amateur and professional astronomers using multiple telescopes at multiple wavelengths. Among these is a collaboration (see https://sites.google.com/site/eecep2014campaign/) headed by Cezary Galan at the Nicolaus Copernicus Astronomical Center in Poland; several individual AAVSO observers are already participating in this effort. The AAVSO is not currently a partner in that campaign, but all data submitted to the AAVSO will be publicly available. The AAVSO strongly encourages observers to begin following this star now, and to continue observations into October 2014 at least. Finder charts with sequence may be created using the AAVSO Variable Star Plotter (http://www.aavso.org/vsp). Observations should be submitted to the AAVSO International Database. See full Alert Notice for more details and observations.

  17. R&D Studies on Radiation Hard Wavelength Shifting Fiber for CMS Hadronic Endcap Calorimeter Upgrade

    NASA Astrophysics Data System (ADS)

    Neuhaus, John

    2009-11-01

    The Hadronic Endcap (HE) calorimeters of the CMS experiment cover the pseudorapidity range of 1.4 to 3 on both sides of the CMS detector, contributing to superior jet and missing transverse energy resolutions. As the integrated luminosity of the LHC increases, the scintillator tiles used in the CMS Hadronic Endcap calorimeter will lose their efficiency. Here, we propose to replace the scintillator tiles in high radiation area with ``radiation hard'' quartz plates. To increase the light collection efficiency, the generated Cerenkov photons are collected by UV absorbing wavelength shifting (WLS) fibers. Our previous study has shown that quartz plates and plastic wavelength shifting fibers can be used as an effective calorimeter. However there is no radiation hard WLS fiber commercially available. Here we summarize the R&D studies on constructing a radiation hard WLS fiber prototype in University of Iowa CMS Laboratories. The results from the tests performed on quartz fibers treated with p-Terphenyl, as well as the Geant4 simulations of this prototype are presented.

  18. Double-chain phospholipid end-capped polyurethanes: Synthesis, characterization and platelet adhesion study

    NASA Astrophysics Data System (ADS)

    Tan, Dongsheng; Zhang, Xiaoqing; Li, Jiehua; Tan, Hong; Fu, Qiang

    2012-01-01

    A novel phospholipid containing double chains and phosphotidylcholine polar head groups, 2-(10-(2-aminoethylamino)-10-oxodecanamido)-3-(decyloxy)-3-oxopropyl phosphorylcholine (ADDPC), was synthesized and characterized. Two kinds of double-chain phospholipid end-capped polyurethanes with different soft segments were prepared. The structure of prepared polyurethanes was characterized by X-ray photoelectron spectroscopic (XPS), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectrometry and atomic force microscope (AFM), which indicated that the double-chain phospholipids enriched onto the top surface of the prepared polyurethane films. The preliminary evaluation of blood compatibility showed that these novel phospholipid end-capped polyurethanes could suppress platelet adhesion and activation effectively. This property did not depend on the chemical structure of polyurethanes. In addition, according to tensile test results, the phospholipid polyurethanes kept good mechanical properties in comparison with original polyurethanes. It is suggested that double-chain phospholipid end-caption has good potential for achieving both hemocompatibility and good mechanical properties simultaneously for polyurethanes.

  19. Synthesis of Hetero-bifunctional, End-Capped Oligo-EDOT Derivatives.

    PubMed

    Spicer, Christopher D; Booth, Marsilea A; Mawad, Damia; Armgarth, Astrid; Nielsen, Christian B; Stevens, Molly M

    2017-01-12

    Conjugated oligomers of 3,4-ethylenedioxythiophene (EDOT) are attractive materials for tissue engineering applications and as model systems for studying the properties of the widely used polymer poly(3,4-ethylenedioxythiophene). We report here the facile synthesis of a series of keto-acid end-capped oligo-EDOT derivatives (n = 2-7) through a combination of a glyoxylation end-capping strategy and iterative direct arylation chain extension. Importantly, these structures not only represent the longest oligo-EDOTs reported but are also bench stable, in contrast to previous reports on such oligomers. The constructs reported here can undergo subsequent derivatization for integration into higher-order architectures, such as those required for tissue engineering applications. The synthesis of hetero-bifunctional constructs, as well as those containing mixed-monomer units, is also reported, allowing further complexity to be installed in a controlled manner. Finally, we describe the optical and electrochemical properties of these oligomers and demonstrate the importance of the keto-acid in determining their characteristics.

  20. Effects of implant diameter, drug loading and end-capping on praziquantel release from PCL implants.

    PubMed

    Li, Changyan; Cheng, Liang; Zhang, Yaqiong; Guo, Shengrong; Wu, Weiping

    2010-02-15

    Praziquantel (PZQ)-loaded poly(epsilon-caprolactone) (PCL) cylindrical implants were fabricated and characterized. Implant diameter (3, 4 and 8mm), drug loading (25% and 50%), and the end-capping were investigated to evaluate their effects on drug release. The evolution of implants with release time was conducted in terms of implant microstructure, crystallinity, drug content and molecular weight of PCL. The results showed that drug release was fastest for the implant with a diameter of 3mm and slowest for the implant with a diameter of 8mm; drug release from the implant with a drug content of 50% was faster than that from the implant with a drug content of 25%; the release of PZQ from the end-capped implants was slightly slower than that from the corresponding end-uncapped implants. The effect of drug loadings on PZQ release was related with diameter of the implants and the effect was weakened as diameter of the implants increased. The drug release data for all the implants were best fitted with Ritger-Peppas model, therefore Fickian diffusion was the predominant release mechanism. The evolution of implants with release time verified that PZQ was gradually released from the exterior to the interior of the implants.

  1. The Common Cryogenic Test Facility for the ATLAS Barrel and End-Cap Toroid Magnets

    SciTech Connect

    Delruelle, N.; Haug, F.; Junker, S.; Passardi, G.; Pengo, R.; Pirotte, O.

    2004-06-23

    The large ATLAS toroidal superconducting magnet made of the Barrel and two End-Caps needs extensive testing at the surface of the individual components prior to their final assembly into the underground cavern of LHC. A cryogenic test facility specifically designed for cooling sequentially the eight coils making the Barrel Toroid (BT) has been fully commissioned and is now ready for final acceptance of these magnets. This facility, originally designed for testing individually the 46 tons BT coils, will be upgraded to allow the acceptance tests of the two End-Caps, each of them having a 160 tons cold mass. The integrated system mainly comprises a 1.2 kW at 4.5 K refrigerator, a 10 kW liquid-nitrogen precooler, two cryostats housing liquid helium centrifugal pumps of respectively 80 g/s and 600 g/s nominal flow and specific instrumentation to measure the thermal performances of the magnets. This paper describes the overall facility with particular emphasis to the cryogenic features adopted to match the specific requirements of the magnets in the various operating scenarios.

  2. Design studies of the PWO Forward End-cap calorimeter for P¯ANDA

    NASA Astrophysics Data System (ADS)

    Moeini, H.; Al-Turany, M.; Babai, M.; Biegun, A.; Bondarenko, O.; Götzen, K.; Kavatsyuk, M.; Lindemulder, M. F.; Löhner, H.; Melnychuk, D.; Messchendorp, J. G.; Smit, H. A. J.; Spataro, S.; Veenstra, R.

    2013-11-01

    The P¯ANDA detection system at FAIR, Germany, is designed to study antiproton-proton annihilations, in order to investigate, among others, the realm of charm-meson states and glueballs, which has still much to reveal. The yet unknown properties of this field are to be unraveled through studying QCD phenomena in the non-perturbative regime. The multipurpose P¯ANDA detector will be capable of tracking, calorimetry, and particle identification, and is planned to run at high luminosities providing average reaction rates up to 2 · 107 interactions/s. The envisaged physics program requires measurements of photons and charged particles with excellent energy, position, and time resolutions. The electromagnetic calorimeter (EMC) will serve as one of the basic components of the detector setup and comprises cooled lead-tungstate (PbWO4) crystals. This paper presents the mechanical design of the Forward End-cap calorimeter and analyzes the response of the Forward End-cap calorimeter in conjunction with the full EMC and the complete P¯ANDA detector. The simulation studies are focused on the performance of the planned EMC with respect to the energy and spatial resolution of the reconstructed photons. Results of the Monte Carlo simulations, excluding very low-energy photons, have been validated by data obtained from a prototype calorimeter and shown to fulfil the requirements imposed by the P¯ANDA physics program.

  3. Measurement of Magnetic Field Uniformity For a Neutron Electric Dipole Moment Detector with New Lead Endcaps

    NASA Astrophysics Data System (ADS)

    Kulkarni, Anita; Filippone, Bradley; Slutsky, Simon; Swank, Christopher; Carr, Robert; Osthelder, Charles; Biswas, Aritra; Molina, Daniel

    2016-09-01

    Over the last several decades, physicists have been measuring the neutron electric dipole moment (nEDM) with greater and greater sensitivity. The latest experiment we are developing will have 100 times more sensitivity than the previous leading experiment. A nonzero nEDM could, among other consequences, explain the presence of more matter than antimatter in the universe. To measure the nEDM with high accuracy, it is necessary to have a very uniform magnetic field inside the detector since non-uniformities can create false signals via the geometric phase effect. One way to improve field uniformity is to add superconducting lead endcaps to the detector, which constrain the fields at their surfaces to be parallel to them. Here, we test how the endcaps improve field uniformity by measuring the magnetic field at various points in a 1/3-scale experimental volume, inferring what the field must be at all other points, and calculating gradients in the field. This knowledge could help guide further steps needed to improve field uniformity and characterize limitations to the sensitivity of nEDM measurements for the full-scale experiment. Rose Hills Foundation, National Science Foundation Grant 1506459, and Department of Energy.

  4. Audre's daughter: Black lesbian steganography in Dee Rees' Pariah and Audre Lorde's Zami: A New Spelling of My Name.

    PubMed

    Kang, Nancy

    2016-01-01

    This article argues that African-American director Dee Rees' critically acclaimed debut Pariah (2011) is a rewriting of lesbian poet-activist Audre Lorde's iconic "bio-mythography" Zami: A New Spelling of My Name (1982). The article examines how Rees' work creatively and subtly re-envisions Lorde's Zami by way of deeply rooted and often cleverly camouflaged patterns, resonances, and contrasts. Shared topics include naming, mother-daughter bonds, the role of clothing in identity formation, domestic abuse, queer time, and lesbian, gay, bisexual, and transgender legacy discourse construction. What emerges between the visual and written texts is a hidden language of connection--what may be termed Black lesbian steganography--which proves thought-provoking to viewers and readers alike.

  5. Experimental Study of the Isochoric Heat Capacity of Diethyl Ether (DEE) in the Critical and Supercritical Regions

    NASA Astrophysics Data System (ADS)

    Polikhronidi, N. G.; Abdulagatov, I. M.; Batyrova, R. G.; Stepanov, G. V.; Wu, J. T.; Ustuzhanin, E. E.

    2012-02-01

    Two- and one-phase liquid and vapor isochoric heat capacities ( C V ρ T relationship) of diethyl ether (DEE) in the critical and supercritical regions have been measured with a high-temperature and high-pressure nearly constant-volume adiabatic calorimeter. The measurements were carried out in the temperature range from 347 K to 575 K for 12 liquid and 5 vapor densities from 212.6 kg·m-3 to 534.6 kg·m-3. The expanded uncertainties (coverage factor k = 2, two-standard deviation estimate) for values of the heat capacity were 2% to 3% in the near-critical region, 1.0% to 1.5% for the liquid isochores, and 3% to 4% for the vapor isochores. The uncertainties of density ( ρ) and temperature ( T) measurements were 0.02% and 15 mK, respectively. The values of the internal energy, U( T, V), and second temperature derivative of pressure, (∂2 P/∂ T 2) ρ , were derived using the measured C V data near the critical point. The critical anomaly of the measured C V and derived values of U( T, V) and (∂2 P/∂ T 2) ρ in the critical and supercritical regions were interpreted in terms of the scaling theory of critical phenomena. The asymptotic critical amplitudes {({A_0^+} and {A_0^- )}} of the scaling power laws along the critical isochore for one- and two-phase C V were calculated from the measured values of C V . Experimentally derived values of the critical amplitude ratio for {CV left({A_0^+ /A_0^- = 0.521}right)} are in good agreement with the values predicted by scaling theory. The measured C V data for DEE were analyzed to study the behavior of loci of isothermal and isochoric C V maxima and minima in the critical and supercritical regions.

  6. High performance asymmetrical push-pull small molecules end-capped with cyanophenyl for solution-processed solar cells.

    PubMed

    Gao, Hang; Li, Yanqin; Wang, Lihui; Ji, Changyan; Wang, Yue; Tian, Wenjing; Yang, Xichuan; Yin, Lunxiang

    2014-09-14

    Two novel asymmetrical push-pull small molecules have been synthesized successfully, consisting of triphenylamine and diketopyrrolopyrrole as a fundamental dipolar D-π-A structure with ethynylbenzene as the π-bridge. TPATDPPCN end-capped with cyanophenyl exhibits a low optical band gap of 1.65 eV, and an impressive PCE of 5.94% has been achieved.

  7. Preparation for the upgrade of CMS Hadron Endcap Calorimeter front-end

    NASA Astrophysics Data System (ADS)

    Bychkova, O. V.; Popova, E. V.; Parygin, P. P.; Bunin, P. D.; Kalinin, A. Yu

    2017-01-01

    The hadron endcap (HE) calorimeter is one of the major sections of CMS detector, used for measurement of the hadrons energy. Phase1 upgrade of the front-end electronics components in the HE calorimeter is being prepared, in particular to improve ability to handle increased pile-up and mitigate radiation damage of optical system in the high eta region. Tests of Phase1 HE Front-end system including new photo-sensors, silicon photomultipliers (SiPM), as well as new charge integrator encoder (QIE11) were performed in the Burn-in station in b904 at CERN. In this note, analysis and measurement results for the new generation front-end electronics components are presented.

  8. Radiation Hard Active Media R&D for CMS Hadron Endcap Calorimetry

    NASA Astrophysics Data System (ADS)

    Tiras, Emrah; CMS-HCAL Collaboration

    2015-04-01

    The High Luminosity LHC era imposes unprecedented radiation conditions on the CMS detectors targeting a factor of 5-10 higher than the LHC design luminosity. The CMS detectors will need to be upgraded in order to withstand these conditions yet maintain/improve the physics measurement capabilities. One of the upgrade options is reconstructing the CMS Endcap Calorimeters with a shashlik design electromagnetic section and replacing active media of the hadronic section with radiation-hard scintillation materials. In this context, we have studied various radiation-hard materials such as Polyethylene Naphthalate (PEN), Polyethylene Terephthalate (PET), HEM and quartz plates coated with various organic materials such as p-Terphenyl (pTp), Gallium doped Zinc Oxide (ZnO:Ga) and Anthracene. Here we discuss the related test beam activities, laboratory measurements and recent developments.

  9. Inclusive 0̂ Production in Polarized pp Collisions using the STAR Endcap Calorimeter

    NASA Astrophysics Data System (ADS)

    Webb, Jason

    2007-10-01

    The two-spin helicity asymmetry for inclusive 0̂ production in polarized pp collisions can provide constraints on the gluon contribution to the spin of the proton with sensitivity comparable to that attainable with full jet reconstruction [1]. In 2006, the STAR experiment accumulated 6 pb-1 of data with beams longitudinally polarized (P 60%) at the Relativistic Heavy Ion Collider. Measurements of ALL(0̂) in the range 1 < η< 2 provide information about a different mix of partonic subprocesses and are subject to different experimental uncertainties than mid-rapidity jet measurements, providing an important cross check. Status of the analysis of ALL(0̂) measured using the STAR Endcap Calorimeter [2] is discussed. [1] B. Jager, M. Stratmann and W. Vogelsang, Phys. Rev. D 70, 034010 (2004) [arXiv:hep-ph/0404057]. [2] K. H. Ackermann et al. [STAR Collaboration], Nucl. Instrum. Meth. A 499, 624 (2003).

  10. Stability of the Gains of the STAR Endcap Calorimeter from 2006 to 2011

    NASA Astrophysics Data System (ADS)

    Kutz, Kayla

    2012-10-01

    The Solenoid Tracker at RHIC (STAR) experiment, based at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC), uses polarized-proton collisions to investigate sea quark and gluon contributions to the known proton spin. The STAR detector's Endcap Electromagnetic Calorimeter (EEMC) measures the energy of particles produced by those collisions using a lead-scintillator sampling calorimeter, consisting of several layers that include pre-shower, shower maximum, tower, and post-shower detectors. In these detectors, the energy gains, which convert a measured pulse into an energy deposition, have been determined using data taken from the years, 2006, 2009 and 2011. Changes in the gains over time may result from known high voltage changes or deterioration of the detector, such as from radiation damage. A comparison of the gains from the three years will be presented.

  11. Performance of the Prototype Readout System for the CMS Endcap Hadron Calorimeter Upgrade

    NASA Astrophysics Data System (ADS)

    Chaverin, Nate; Dittmann, Jay; Hatakeyama, Kenichi; Pastika, Nathaniel; CMS Collaboration

    2016-03-01

    The Compact Muon Solenoid (CMS) experiment at the CERN Large Hadron Collider (LHC) will upgrade the photodetectors and readout systems of the endcap hadron calorimeter during the technical stop scheduled for late 2016 and early 2017. A major milestone for this project was a highly successful testbeam run at CERN in August 2015. The testbeam run served as a full integration test of the electronics, allowing a study of the response of the preproduction electronics to the true detector light profile, as well as a test of the light yield of various new plastic scintillator materials. We present implications for the performance of the hadron calorimeter front-end electronics based on testbeam data, and we report on the production status of various components of the system in preparation for the upgrade.

  12. Geometric alignment of the CMD-3 endcap electromagnetic calorimeter using events of two-quantum annihilation

    NASA Astrophysics Data System (ADS)

    Akhmetshin, R. R.; Grigoriev, D. N.; Kazanin, V. F.; Kuzmenko, A. E.; Timofeev, A. V.

    2017-08-01

    Since 2010 the electromagnetic endcap calorimeter based on BGO crystals is used in experiments as one of the systems of the CMD-3 detector. The spacial resolution is one of crucial parameters of the calorimeter. Inaccurate knowledge of the real calorimeter position can limit the resolution. In this work the alignment of the center of the calorimeter with respect to the tracking system of the CMD-3 detector has been performed using events of two-quantum annihilation. The alignment technique that has been used to determine the position of the calorimeter is described. Finally, the improvement in spacial resolution of the calorimeter after applying the correction for the real calorimeter position is shown.

  13. ATLAS Liquid Argon Endcap Calorimeter R&D for sLHC

    NASA Astrophysics Data System (ADS)

    Schacht, P.

    2010-04-01

    The performance of the ATLAS liquid argon endcap has been studied for luminosities as expected for the operation at sLHC. The increase of integrated luminosity by a factor of ten has serious consequences for the signal reconstruction, radiation hardness requirements and operations of the forward liquid argon calorimeters. The response has been studied with small modules of the type as built for ATLAS in a very high intensity beam at IHEP/Protvino. The highest intensity obtained was well above the level of energy impact expected for ATLAS at sLHC. The signal processing of the ATLAS Hadronic Endcap Calorimeter employs the concept of 'active pads' which keep the detector capacities at the input of the amplifiers small and thereby achieves a fast rise time of the signal. This concept is realized using highly integrated amplifier and summing chips in GaAs technology. With an increase of luminosity by a factor of ten the safety factor for the radiation hardness is essentially eliminated. Therefore new, more radiation hard technologies have been studied: SiGe bipolar, Si CMOS FET and GaAs FET transistors have been irradiated with neutrons up to an integrated fluence of 2.2 × 1016n/cm2. All technologies exceed the limit required for the radiation hardness for the operation at sLHC of 2 × 1015n/cm2. The temperature dependence of the gain has been studied as well. Here the bipolar technologies - in contrast to CMOS - need an adjustment of the operation point when going from room temperature to liquid nitrogen temperature.

  14. Spectroscopic and chromatographic characterisation of a pentafluorophenylpropyl silica phase end-capped in supercritical carbon dioxide as a reaction solvent.

    PubMed

    Ashu-Arrah, Benjamin A; Glennon, Jeremy D; Albert, Klaus

    2013-07-12

    This research uses solid-state nuclear magnetic resonance (NMR) spectroscopy to characterise the nature and amount of different surface species, and chromatography to evaluate phase properties of a pentafluorophenylpropyl (PFPP) bonded silica phase prepared and end-capped using supercritical carbon dioxide (sc-CO2) as a reaction solvent. Under sc-CO2 reaction conditions (at temperature of 100 °C and pressure of 414 bar), a PFPP silica phase was prepared using 3-[(pentafluorophenyl)propyldimethylchlorosilane] within 1h. The bonded PFPP phase was subsequently end-capped with bis-N,O-trimethylsilylacetamide (BSA), hexamethyldisilazane (HMDS) and trimethylchlorosilane (TMCS) within 1h under the same sc-CO2 reaction conditions (100 °C/4141 bar). Elemental microanalysis, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) were used to provide support data to solid-state NMR and chromatographic evaluation. Results revealed a surface coverage of 2.2 μmol/m(2) for the non-end-capped PFPP silica phase while the PFPP phase end-capped with BSA gave a higher surface coverage (3.9 μmol/m(2)) compared to HMDS (2.9 μmol/m(2)) and TMCS (2.8 μmol/m(2)). (29)Si CP/MAS NMR analysis of the PFPP end-capped with BSA shows a significant decrease in the amount of Q(3) (free silanols) and Q(4) (siloxane groups) species, coupled with the absence of the most reactive Q(2) (geminal silanols) in addition to increased amount of a single resonance peak centred at +13 ppm (MH) corresponding to -Si-O-*Si-CH3 bond. (13)C CP/MAS NMR shows the resonance corresponding to the propyl linkage (CH3CH2CH2-) and methyl groups (Si(CH3)n) confirming successful silanisation and endcapping reactions in sc-CO2. Chromatographic evaluation of the BSA end-capped PFPP phase with Neue text mixture revealed improved chromatographic separation as evidenced in the enhanced retention of hydrophobic markers and decreased retention for basic solutes. Moreover, chromatography revealed a change in

  15. EE Cep Winks in Full Color (Abstract)

    NASA Astrophysics Data System (ADS)

    Walker, G.

    2015-06-01

    (Abstract only) We observe the long period (5.6 years) Eclipsing Binary Variable Star EE Cep during its 2014 eclipse. It was observed on every clear night from the Maria Mitchell Observatory as well as remote sites for a total of 25 nights. Each night consisted of a detailed time series in BVRI looking for short term variations for a total of >10,000 observations. The data was transformed to the Standard System. In addition, a time series was captured during the night of the eclipse. This data provides an alternate method to determine Time of Minimum than traditionally performed. The TOM varied with color. Several strong correlations are seen between colors substantiating the detection of variations on a time scale of hours. The long term light curve shows five interesting and different Phases with different characteristics.

  16. Dependence of ripple dimensions on cohesive and non-cohesive bed properties in the intertidal Dee Estuary

    NASA Astrophysics Data System (ADS)

    Lichtman, Ian; Thorne, Peter; Baas, Jacobus; O'Boyle, Louise; Cooke, Richard; Amoudry, Laurent; Bell, Paul; Aspden, Rebecca; Bass, Sarah; Davies, Alan; Hope, Julie; Malarkey, Jonathan; Manning, Andrew; Parsons, Daniel; Paterson, David; Peakall, Jeffrey; Schindler, Robert; Ye, Leiping

    2014-05-01

    There is a need to better understand the effects of cohesive and mixed sediments on coastal processes, to improve sediment transport models for the management of coastal erosion, siltation of navigation channels and habitat change. Although reasonable sediment transport predictors are available for pure sands, it still is not the case for mixed cohesive and non-cohesive sediments. Existing predictors mostly relate ripple dimensions to hydrodynamic conditions and median sediment grain diameter, assuming a narrow unimodal particle size distribution. Properties typical of mixed conditions, such as composition and cohesion for example, are not usually taken into account. This presents severe shortcomings to predictors' abilities. Indeed, laboratory experiments using mixed cohesive sediments have shown that bedform dimensions decrease with increasing bed mud content. In the field, one may expect current predictors to match data for well-sorted sands closely, but poorly for mixed sediments. Our work is part of the COHBED project and aims to: (1) examine, in field conditions, if ripple dimensions are significantly different for mixed cohesive sediment beds compared to beds with pure sand; (2) compare the field data with laboratory results that showed reduced ripple length due to cohesive mud content; and (3) assess the performance of a selection of ripple predictors for mixed sediment data. The COHBED project was set up to undertake laboratory experiments and fieldwork to study how physical and biological processes influence bedform development in a mixed cohesive-cohesionless sediment environment. As part of COHBED, a suite of instruments was deployed on tidal flats in the Dee Estuary (on the NW coast of England), collecting co-located measurements of the hydrodynamics, suspended sediment properties and bed morphology. The instruments occupied three sites collecting data over different bed compositions during a two week period (21 May to 4 June 2013). One site was

  17. On the effect of Di-Ethyl-Ether (DEE) injection upon the cold starting of a biodiesel fuelled compression ignition engine

    NASA Astrophysics Data System (ADS)

    Clenci, Adrian; Niculescu, Rodica; Iorga-Simǎn, Victor; Tricǎ, Alina; Danlos, Amélie

    2017-02-01

    The use of biodiesel fuel in compression ignition engines has the potential to reduce CO2, which can lead to a reduction in global warming and environmental hazards. Biodiesel is an attractive fuel, as it is made from renewable resources. A major drawback associated with the use of biodiesel, however, is its poor cold flow properties, which have a direct influence on the cold starting performance of the engine. This paper is a consequence of a study on assessing the cold-starting performance of a compression ignition engine fueled with different blends of fossil diesel fuel and biodiesel. Through experimental investigations, it was found that the engine starting at -20°C was no longer possible in the case of using B50 (50% diesel + 50% biofuel made from sunflower oil). In order to "force" the engine starting in this particular situation, Di-Ethyl-Ether (DEE) was injected into the intake manifold. DEE being a highly flammable substance, the result was a sudden and explosive engine starting, the peak pressure in the monitored cylinder in the first successful engine cycle being almost twice the one which is usually considered as normal. Thus, to explain the observed phenomena, we launched this work relying on the analysis of the in-cylinder instantaneous pressure evolution, which was acquired during cranking, stabilizing and idling phases. Moreover, since the cause of the sudden and explosive engine starting was the DEE, by using a CFD approach, we also obtained results regarding the inter-cylinder distribution of the injected DEE.

  18. Some Historical Thoughts on the ee-Learning Renaissance

    ERIC Educational Resources Information Center

    Nilles, Jack M.

    2007-01-01

    Jack Nilles surveys the evolution of ee-learning at the University of Southern California, together with the first formal telecommuting demonstration program, from its beginnings in the early 1970s to the relevant trends in 2006. Although the basic technologies of telecommuting and ee-learning were in evidence in the 1970s, subsequent…

  19. Some Historical Thoughts on the ee-Learning Renaissance

    ERIC Educational Resources Information Center

    Nilles, Jack M.

    2007-01-01

    Jack Nilles surveys the evolution of ee-learning at the University of Southern California, together with the first formal telecommuting demonstration program, from its beginnings in the early 1970s to the relevant trends in 2006. Although the basic technologies of telecommuting and ee-learning were in evidence in the 1970s, subsequent…

  20. The Co-Evolution of ESD and EE

    ERIC Educational Resources Information Center

    Monroe, Martha C.

    2012-01-01

    William B. Stapp, a major author of the founding documents of environmental education (EE), foreshadowed the triple concerns of education for sustainable development (ESD) with environment, social justice and economic health. Yet EE in the USA tended to follow the advocacy orientation of the environmental movement of the 1970s and later, following…

  1. The Co-Evolution of ESD and EE

    ERIC Educational Resources Information Center

    Monroe, Martha C.

    2012-01-01

    William B. Stapp, a major author of the founding documents of environmental education (EE), foreshadowed the triple concerns of education for sustainable development (ESD) with environment, social justice and economic health. Yet EE in the USA tended to follow the advocacy orientation of the environmental movement of the 1970s and later, following…

  2. Migration of the Pee Dee River system inferred from ancestral paleochannels underlying the South Carolina Grand Strand and Long Bay inner shelf

    USGS Publications Warehouse

    Baldwin, W.E.; Morton, R.A.; Putney, T.R.; Katuna, M.P.; Harris, M.S.; Gayes, P.T.; Driscoll, N.W.; Denny, J.F.; Schwab, W.C.

    2006-01-01

    Several generations of the ancestral Pee Dee River system have been mapped beneath the South Carolina Grand Strand coastline and adjacent Long Bay inner shelf. Deep boreholes onshore and high-resolution seismic-reflection data offshore allow for reconstruction of these paleochannels, which formed during glacial lowstands, when the Pee Dee River system incised subaerially exposed coastal-plain and continental-shelf strata. Paleochannel groups, representing different generations of the system, decrease in age to the southwest, where the modern Pee Dee River merges with several coastal-plain tributaries at Winyah Bay, the southern terminus of Long Bay. Positions of the successive generational groups record a regional, southwestward migration of the river system that may have initiated during the late Pliocene. The migration was primarily driven by barrier-island deposition, resulting from the interaction of fluvial and shoreline processes during eustatic highstands. Structurally driven, subsurface paleotopography associated with the Mid-Carolina Platform High has also indirectly assisted in forcing this migration. These results provide a better understanding of the evolution of the region and help explain the lack of mobile sediment on the Long Bay inner shelf. Migration of the river system caused a profound change in sediment supply during the late Pleistocene. The abundant fluvial source that once fed sand-rich barrier islands was cut off and replaced with a limited source, supplied by erosion and reworking of former coastal deposits exposed at the shore and on the inner shelf.

  3. Modelling of tidally affected river reaches with data assimilation for flood warning purposes: An example on the River Dee, UK

    NASA Astrophysics Data System (ADS)

    Smith, P. J.; Beven, K.; Horsburgh, K.; Cullen, J.

    2012-04-01

    On rivers where the flow regime is influenced by a tidal signal the provision of accurate forecasts requires the careful coupling of predictive models for both the tidal signal and the rainfall driven river system. This paper discusses such a coupled modelling system constructed for the River Dee (UK). A series of parsimonious, physically interpretable time series models are used to represent the dynamics of the river water level at several gauging sites on the flood plain. These gauges are used operationally to help in determining the issuing of flood warnings. The simplified models are coupled and cast into a state space form. The assimilation of the observed water levels at the gauge sites to inform future forecasts is then a non-linear filter a solution to which is readily approximated. Assessment of the model forecasts against the observed data is carried out using a number of existing metrics. These suggest the model forecasts are a useful guide to the future water level. The representation of the forecast and its uncertainty to the operational staff is considered. A prototype of the sequential decision making process; based on the relative cost of 'true' or 'false' warnings; and designed to help guide the catchment manager in issuing warnings is presented.

  4. Inhibition of diethyl ether degradation in Rhodococcus sp. strain DEE5151 by glutaraldehyde and ethyl vinyl ether.

    PubMed

    Kim, Yong-Hak; Engesser, Karl-Heinrich

    2005-02-15

    Alkyl ether-degrading Rhodococcus sp. strain DEE5151, isolated from activated sewage sludge, has an activity for the oxidation of a variety of alkyl ethers, aralkyl ethers and dibenzyl ether. The whole cell activity for diethyl ether oxidation was effectively inhibited by 2,3-dihydrofurane, ethyl vinyl ether and glutaraldehyde. Glutaraldehyde of less than 30 microM inhibited the activity by a competitive manner with the inhibition constant, K(I) of 7.07+/-1.36 microM. The inhibition type became mixed at higher glutaraldehyde concentrations >30 microM, probably due to the inactivation of the cell activity by the Schiff-base formation. Structurally analogous ethyl vinyl ether inhibited the diethyl ether oxidation activity in a mixed manner with decreasing the apparent maximum oxidation rate, v(max)(app), and increasing the apparent Michaelis-Menten constant, K(M)(app). The mixed type inhibition by ethyl vinyl ether seemed to be introduced not only by the structure similarity with diethyl ether, but also by the reactivity of the vinyl ether with cellular components in the whole cell system.

  5. Column selectivity in reversed-phase liquid chromatography. VI. Columns with embedded or end-capping polar groups.

    PubMed

    Wilson, N S; Gilroy, J; Dolan, J W; Snyder, L R

    2004-02-13

    A previous model of column selectivity for reversed-phase liquid chromatography (RP-LC) has been applied to an additional 21 columns with embedded or end-capping polar groups (EPGs). Embedded-polar-group columns exhibit a significantly different selectivity vs. non-EPG, type-B columns, generally showing preferential retention of hydrogen-bond donors, as well as decreased retention for hydrogen-bond acceptors or ionized bases. EPG-columns are also generally less hydrophobic (more polar) than are non-EPG-columns. Interestingly, columns with polar end-capping tend to more closely resemble non-EPG columns, suggesting that the polar group has less effect on column selectivity when used to end-cap the column versus the case of an embedded polar group. Column selectivity data reported here for EPG-columns can be combined with previously reported values for non-EPG columns to provide a database of 154 different columns. This enables a comparison of any two of these columns in terms of selectivity. However, comparisons that involve EPG columns are more approximate.

  6. DC Potentials Applied to an End-cap Electrode of a 3-D Ion Trap for Enhanced MSn Functionality

    PubMed Central

    Prentice, Boone M.; Xu, Wei; Ouyang, Zheng; McLuckey, Scott A.

    2010-01-01

    The effects of the application of various DC magnitudes and polarities to an end-cap of a 3-D quadrupole ion trap throughout a mass spectrometry experiment were investigated. Application of a monopolar DC field was achieved by applying a DC potential to the exit end-cap electrode, while maintaining the entrance end-cap electrode at ground potential. Control over the monopolar DC magnitude and polarity during time periods associated with ion accumulation, mass analysis, ion isolation, ion/ion reaction, and ion activation can have various desirable effects. Included amongst these are increased ion capture efficiency, increased ion ejection efficiency during mass analysis, effective isolation of ions using lower AC resonance ejection amplitudes, improved temporal control of the overlap of oppositely charged ion populations, and the performance of “broad-band” collision induced dissociation (CID). These results suggest general means to improve the performance of the 3-D ion trap in a variety of mass spectrometry and tandem mass spectrometry experiments. PMID:21927573

  7. Key Role of End-Capping Groups in Optoelectronic Properties of Poly-p-phenylene Cation Radicals

    PubMed Central

    2015-01-01

    Poly-p-phenylenes (PPs) are prototype systems for understanding the charge transport in π-conjugated polymers. In a combined computational and experimental study, we demonstrate that the smooth evolution of redox and optoelectronic properties of PP cation radicals toward the polymeric limit can be significantly altered by electron-donating iso-alkyl and iso-alkoxy end-capping groups. A multiparabolic model (MPM) developed and validated here rationalizes this unexpected effect by interplay of the two modes of hole stabilization: due to the framework of equivalent p-phenylene units and due to the electron-donating end-capping groups. A symmetric, bell-shaped hole in unsubstituted PPs becomes either slightly skewed and shifted toward an end of the molecule in iso-alkyl-capped PPs or highly deformed and concentrated on a terminal unit in PPs with strongly electron-donating iso-alkoxy capping groups. The MPM shows that the observed linear 1/n evolution of the PP cation radical properties toward the polymer limit originates from the hole stabilization due to the growing chain of p-phenylene units, while shifting of the hole toward electron-donating end-capping groups leads to early breakdown of these 1/n dependencies. These insights, along with the readily applicable and flexible multistate parabolic model, can guide studies of complex donor–spacer–acceptor systems and doped molecular wires to aid the design of the next generation materials for long-range charge transport and photovoltaic applications. PMID:25264475

  8. Electronics for CMS Endcap Muon Level-1 Trigger System Phase-1 and HL LHC upgrades

    NASA Astrophysics Data System (ADS)

    Madorsky, A.

    2017-07-01

    To accommodate high-luminosity LHC operation at a 13 TeV collision energy, the CMS Endcap Muon Level-1 Trigger system had to be significantly modified. To provide robust track reconstruction, the trigger system must now import all available trigger primitives generated by the Cathode Strip Chambers and by certain other subsystems, such as Resistive Plate Chambers (RPC). In addition to massive input bandwidth, this also required significant increase in logic and memory resources. To satisfy these requirements, a new Sector Processor unit has been designed. It consists of three modules. The Core Logic module houses the large FPGA that contains the track-finding logic and multi-gigabit serial links for data exchange. The Optical module contains optical receivers and transmitters; it communicates with the Core Logic module via a custom backplane section. The Pt Lookup table (PTLUT) module contains 1 GB of low-latency memory that is used to assign the final Pt to reconstructed muon tracks. The μ TCA architecture (adopted by CMS) was used for this design. The talk presents the details of the hardware and firmware design of the production system based on Xilinx Virtex-7 FPGA family. The next round of LHC and CMS upgrades starts in 2019, followed by a major High-Luminosity (HL) LHC upgrade starting in 2024. In the course of these upgrades, new Gas Electron Multiplier (GEM) detectors and more RPC chambers will be added to the Endcap Muon system. In order to keep up with all these changes, a new Advanced Processor unit is being designed. This device will be based on Xilinx UltraScale+ FPGAs. It will be able to accommodate up to 100 serial links with bit rates of up to 25 Gb/s, and provide up to 2.5 times more logic resources than the device used currently. The amount of PTLUT memory will be significantly increased to provide more flexibility for the Pt assignment algorithm. The talk presents preliminary details of the hardware design program.

  9. High Energy Polarized e+e- Beams

    NASA Astrophysics Data System (ADS)

    Shatunov, Yu.; Koop, I.; Otboev, A.; Mane, S.

    2016-02-01

    Recently, the wide discussion about Higgs-factory design again returns to problem of high energy polarized electrons and positrons. It’s good known the radiative beam polarization at LEP-collider. It was obtained after spin resonance suppression at Z0 pick, but didn’t appear at energies above 70 GeV due to an enhancement of unavoidable depolarization effects. We examine in this paper various ideas for radiative polarization at TLEP/FCC-ee and formulate some estimates for the polarization buildup time and the asymptotic polarization. Using wigglers, a useful degree of polarization (for energy calibration), with a time constant of about 1 h, may be possible up to the threshold of W pair production. At higher energies such as the threshold of Higgs production, attaining a useful level of polarization may be difficult in a planar ring. With Siberian Snakes, wigglers and some imagination, polarization of reasonable magnitude, with a reasonable time constant (of not more than about 1 h), may be achievable at very high energies.

  10. Surface reconstruction and hemocompatibility improvement of a phosphorylcholine end-capped poly(butylene succinate) coating.

    PubMed

    Hao, Ni; Wang, Yan-Bing; Zhang, Shi-Ping; Shi, Su-Qing; Nakashima, Kenichi; Gong, Yong-Kuan

    2014-09-01

    Control over cell-material surface interactions is the key to many new and improved biomedical devices. In this study, we present a simple yet effective surface modification method that allows for the surface reconstruction and formation of cell outer membrane mimetic structure on coatings that have significantly increased hemocompatibility. To achieve this, a phosphorylcholine end-capped poly(butylene succinate) (PBS-PC) was synthesized and dip-coated on coverslips. The surface structure of the amphiphilic PBS-PC film was reconstructed by heating in a vacuum oven to obtain the less hydrophilic surface and by immersing in hot water to obtain the more hydrophilic surface. Significant changes in the surface element concentration were observed by X-ray photoelectron spectroscopy analysis and changes in surface wettability were measured by sensitive dynamic contact angle technique. Scanning electron microscope images showed different morphologies of the reconstructed surfaces. Interestingly, the reconstruction between the less hydrophilic and more hydrophilic surfaces is reversible. More importantly, both the reconstructed surfaces are stable in room condition for more than 6 months, and both the surfaces show significant improvement in hemocompatibility as revealed by protein adsorption and platelet adhesion measurements. This reversible surface reconstruction strategy and the interesting results may be significant for fabricating stable and hemocompatible surfaces on differently shaped biomedical devices. © 2013 Wiley Periodicals, Inc.

  11. The Forward Endcap of the Electromagnetic Calorimeter for the PANDA Detector at FAIR

    NASA Astrophysics Data System (ADS)

    Albrecht, Malte; PANDA Collaboration

    2015-02-01

    The versatile 4π-detector PANDA will be built at the Facility for Antiproton and Ion Research (FAIR), an accelerator complex, currently under construction near Darmstadt, Germany. A cooled antiproton beam in a momentum range of 1.5 - 15GeV/c will be provided by the High Energy Storage Ring (HESR). All measurements at PANDA rely on an excellent performance of the detector with respect to tracking, particle identification and energy measurement. The electromagnetic calorimeter (EMC) of the PANDA detector will be equipped with 15744 PbWO4 crystals (PWO-II), which will be operated at a temperature of - 25° C in order to increase the light output. The design of the forward endcap of the EMC has been finalized. The crystals will be read out with Large Area Avalanche Photo Diodes (LAAPDs) in the outer regions and with Vacuum Photo Tetrodes (VPTTs) in the innermost part. Production of photosensor units utilizing charge integrating preamplifiers has begun. A prototype comprised of 216 PbWO4 crystals has been built and tested at various accelerators (CERN SPS, ELSA/Bonn, MAMI/Mainz), where the crystals have been exposed to electron and photon beams of 25MeV up to 15GeV. The results of these test measurements regarding the energy and position resolution are presented.

  12. Stability of the Tower Gains of the STAR Endcap Calorimeter in 2012 Data

    NASA Astrophysics Data System (ADS)

    Amarasinghe, Chamindu; STAR Collaboration

    2016-09-01

    The Solenoid Tracker at RHIC (STAR) experiment, based at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC), uses polarized-proton collisions to investigate sea quark and gluon contributions to the proton spin. The STAR detector's Endcap Electromagnetic Calorimeter (EEMC) is of particular interest in this experiment because it covers a kinematic region that is sensitive to gluons carrying a low fraction of the proton momentum, where the gluon's contribution to the spin of the proton is poorly constrained. The EEMC is located in the intermediate pseudorapidity range, 1 < η <2, and as a lead-scintillator sampling calorimeter, measures the electromagnetic energy of particles produced in the polarized-proton collisions. The calorimeter consists of several layers that include pre-shower, shower maximum, tower, and post-shower detectors. In these detectors, the energy gains, which convert a measured signal into an energy deposition, have been determined using data taken from the year 2012. The sensitivities of the tower energy gains to beam intensity and running time were studied. The results from these sensitivity studies will be reported. Funded by the US Department of Energy.

  13. Novel in-situ nanocomposites of phthalonitrile end-capped polyarylene ether nitrile/copper phthalocyanine

    NASA Astrophysics Data System (ADS)

    Tong, Lifen; Wei, Renbo; Liu, Xiaobo

    2017-01-01

    A novel phthalonitrile end-capped polyarylene ether nitrile (PEN-Ph)/copper phthalocyanine (CuPc) nanocomposites which possesses crosslinking reaction combined with crystallization behaviour were prepared successfully through in-situ reaction and hot-compression. In the presence of copper ion, CuPc were formed through crosslinking reaction among the phthalonitrile at the end of the PEN-Ph main chain and 1, 3, 5-Tri-(3, 4-dicyanophenoxy) benzene (TPh). Besides, the formed CuPc can play the role of nucleating agent to improve the crystallinity of the polymers. The influence of the crosslinking reaction and crystallization behaviour were investigated. The results show that the crystallization and crosslinking coexist in the system at the same time. Scanning electron microscope (SEM) images show that the crystals of the PEN-Ph grow after the hot-compressing procedure. Moreover, the glass transition temperature (Tg) increases while the crystallinity declines slightly with the low amount of copper ions. The increase of Tg is mainly caused by the crosslinking reaction, indicating that the copper can be used as a crosslinking agent in this system. Due to formation of the CuPc and the crystallization behaviour, the dielectric constant increased as expected from 3.2 to 4.9 while the dielectric loss decreased. Therefore, the PEN-Ph/CuPc in-situ nanocomposites will have a good prospect for application in electronic field.

  14. Adsorption of hydrophobically end-capped poly(ethylene glycol) on cellulose.

    PubMed

    Holappa, Susanna; Kontturi, Katri S; Salminen, Arto; Seppälä, Jukka; Laine, Janne

    2013-11-12

    Adsorption of poly(ethylene glycol), hydrophobically end-capped with octadecenylsuccinic anhydride (OSA-PEG-OSA), on an ultrathin film of cellulose has been studied by quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM). Normally, PEG does not adsorb on cellulosic surfaces, but the use of the telechelic hydrophobic modification was found to promote adsorption. The influence of the conformation of the polymer in solution prior to adsorption and the subsequent properties of the adsorbed layer were investigated. The adsorption experiments were done at concentrations below and above the critical association concentration. The adsorption of OSA-PEG-OSA on cellulose was observed to occur in four distinct stages. Because of the amphiphilic nature of cellulose, further adsorption experiments were performed on hydrophobic (polystyrene) and hydrophilic (silica) model substrates to illuminate the contribution of hydrophobic and hydrophilic factors in the adsorption phenomenon. As expected, the kinetics and the mechanism of adsorption were strongly dependent on the chemical composition of the substrate.

  15. Micro-canonical pentaquark production in ee and pp collisions

    NASA Astrophysics Data System (ADS)

    Liu, Fu-Ming; Werner, Klaus

    2008-01-01

    The existence of pentaquarks became questionable, because the Θ peak is observed in some p+p collisions, but not in ee annihilations. People think initial baryon number is necessary to produce pentaquarks. In this paper, we estimate and compare the production of Θ(1540) and Ξ(1860) in ee and pp collisions at different energies using Fermi statistical model as originally proposed in its microcanonical form. We find that both Θ(1540) and Ξ(1860) yield more in ee at LEP energies than in pp collisions at SPS and RHIC energies, if pentaquarks do exist. Initial baryon number is not necessary for pentaquark production.

  16. Identification of American shad spawning sites and habitat use in the Pee Dee River, North Carolina and South Carolina

    USGS Publications Warehouse

    Harris, Julianne E.; Hightower, Joseph E.

    2011-01-01

    We examined spawning site selection and habitat use by American shad Alosa sapidissima in the Pee Dee River, North Carolina and South Carolina, to inform future management in this flow-regulated river. American shad eggs were collected in plankton tows, and the origin (spawning site) of each egg was estimated; relocations of radio-tagged adults on spawning grounds illustrated habitat use and movement in relation to changes in water discharge rates. Most spawning was estimated to occur in the Piedmont physiographic region within a 25-river-kilometer (rkm) section just below the lowermost dam in the system; however, some spawning also occurred downstream in the Coastal Plain. The Piedmont region has a higher gradient and is predicted to have slightly higher current velocities and shallower depths, on average, than the Coastal Plain. The Piedmont region is dominated by large substrates (e.g., boulders and gravel), whereas the Coastal Plain is dominated by sand. Sampling at night (the primary spawning period) resulted in the collection of young eggs (≤1.5 h old) that more precisely identified the spawning sites. In the Piedmont region, most radio-tagged American shad remained in discrete areas (average linear range = 3.6 rkm) during the spawning season and generally occupied water velocities between 0.20 and 0.69 m/s, depths between 1.0 and 2.9 m, and substrates dominated by boulder or bedrock and gravel. Tagged adults made only small-scale movements with changes in water discharge rates. Our results demonstrate that the upstream extent of migration and an area of concentrated spawning occur just below the lowermost dam. If upstream areas have similar habitat, facilitating upstream access for American shad could increase the spawning habitat available and increase the population's size.

  17. 8. Site Section EE Aquatic Park, Area bounded by ...

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

    8. Site Section E-E - Aquatic Park, Area bounded by Hyde Street and Van Ness Avenue on the East and West and the Aquatic Cove and Beach Street on the North and South, San Francisco, San Francisco County, CA

  18. Pilot Fullerton dons ejection escape suit (EES) on middeck

    NASA Technical Reports Server (NTRS)

    1982-01-01

    Pilot Fullerton dons ejection escape suit (EES) (high altitude pressure garment) life preserver unit (LPU) on forward port side of middeck above potable water tank. Fullerton also adjusts lapbelt fitting and helmet holddown strap.

  19. Experiment 2039 – Diagnostic Logging in EE-3

    SciTech Connect

    Dash, Zora V.; Grigsby, Charles O.; Murphy, Hugh D.

    1984-06-19

    Experiment 2039, diagnostic logging in EE-3, was conducted in two parts. Part A, temperature and collar locator surveys while injecting water was run from ~16:00, 4-Apr-84 through ~11:00, 5-Apr-84. Part B, tracer surveys, run from ~8:15 - 21:00, 6-Apr-84. The purpose of the surveys was to determine fluid entry locations in the open hole sections of EE-3

  20. A racemate-rules effect supramolecular polymer for ee determination of malic acid in the high ee region.

    PubMed

    Chen, Xuan-Xuan; Jiang, Yun-Bao; Anslyn, Eric V

    2016-10-18

    A supramolecular polymeric system that shows an unusual "racemate-rules" chiroptical property, an effect opposite to the well-known "majority-rules", has been utilized for accurate determination of malic acid enantiopurity at high ee values.

  1. Exploration of Energy Metabolism in the Mouse Using Indirect Calorimetry: Measurement of Daily Energy Expenditure (DEE) and Basal Metabolic Rate (BMR).

    PubMed

    Meyer, Carola W; Reitmeir, Peter; Tschöp, Matthias H

    2015-09-01

    Current comprehensive mouse metabolic phenotyping involves studying energy balance in cohorts of mice via indirect calorimetry, which determines heat release from changes in respiratory air composition. Here, we describe the measurement of daily energy expenditure (DEE) and basal metabolic rate (BMR) in mice. These well-defined metabolic descriptors serve as meaningful first-line read-outs for metabolic phenotyping and should be reported when exploring energy expenditure in mice. For further guidance, the issue of appropriate sample sizes and the frequency of sampling of metabolic measurements is also discussed.

  2. 31 CFR 351.41 - When are definitive Series EE savings bonds validly issued?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false When are definitive Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.41 When are definitive Series EE savings bonds validly issued? A definitive bond is validly issued when it is...

  3. 31 CFR 351.41 - When are definitive Series EE savings bonds validly issued?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When are definitive Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.41 When are definitive Series EE savings bonds validly issued? A definitive bond is validly issued when it is...

  4. 31 CFR 351.4 - In what form are Series EE savings bonds issued?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false In what form are Series EE savings... SAVINGS BONDS, SERIES EE General Information § 351.4 In what form are Series EE savings bonds issued? Series EE savings bonds are issued in book-entry form. Effective January 1, 2012, Treasury...

  5. 31 CFR 351.4 - In what form are Series EE savings bonds issued?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false In what form are Series EE savings... SAVINGS BONDS, SERIES EE General Information § 351.4 In what form are Series EE savings bonds issued? Series EE savings bonds are issued in either book-entry or definitive form....

  6. 31 CFR 351.41 - When are definitive Series EE savings bonds validly issued?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false When are definitive Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.41 When are definitive Series EE savings bonds validly issued? A definitive bond is validly issued when it is...

  7. 31 CFR 351.1 - What regulations govern Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What regulations govern Series EE... SAVINGS BONDS, SERIES EE General Information § 351.1 What regulations govern Series EE savings bonds? (a) The regulations in 31 CFR part 353 apply to definitive (paper) Series EE savings bonds that have...

  8. 31 CFR 351.8 - When is interest payable on Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false When is interest payable on Series EE... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.8 When is interest payable on Series EE savings bonds? Interest on a bond...

  9. 31 CFR 351.6 - When may I redeem my Series EE savings bond?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When may I redeem my Series EE savings... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.6 When may I redeem my Series EE savings bond? (a) Bonds with issue dates on...

  10. 31 CFR 351.41 - When are definitive Series EE savings bonds validly issued?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false When are definitive Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.41 When are definitive Series EE savings bonds validly issued? A definitive bond is validly issued when it is...

  11. 31 CFR 351.1 - What regulations govern Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false What regulations govern Series EE... SAVINGS BONDS, SERIES EE General Information § 351.1 What regulations govern Series EE savings bonds? (a) The regulations in 31 CFR part 353 apply to definitive (paper) Series EE savings bonds that have...

  12. 31 CFR 351.49 - How are definitive Series EE savings bonds delivered?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false How are definitive Series EE savings... UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.49 How are definitive Series EE savings bonds delivered? We deliver definitive bonds by mail to your address. If your...

  13. 31 CFR 351.6 - When may I redeem my Series EE savings bond?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false When may I redeem my Series EE... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.6 When may I redeem my Series EE savings bond? (a) Bonds with issue dates on...

  14. 31 CFR 351.4 - In what form are Series EE savings bonds issued?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false In what form are Series EE savings... SAVINGS BONDS, SERIES EE General Information § 351.4 In what form are Series EE savings bonds issued? Series EE savings bonds are issued in book-entry form. Effective January 1, 2012, Treasury...

  15. 31 CFR 351.49 - How are definitive Series EE savings bonds delivered?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false How are definitive Series EE savings... UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.49 How are definitive Series EE savings bonds delivered? We deliver definitive bonds by mail to your address. If your...

  16. 31 CFR 351.5 - What is the maturity period of a Series EE savings bond?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Series EE savings bond? 351.5 Section 351.5 Money and Finance: Treasury Regulations Relating to Money and... UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.5 What is the maturity period of a Series EE savings bond?...

  17. 31 CFR 351.49 - How are definitive Series EE savings bonds delivered?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false How are definitive Series EE savings... UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.49 How are definitive Series EE savings bonds delivered? We deliver definitive bonds by mail to your address. If your...

  18. 31 CFR 351.4 - In what form are Series EE savings bonds issued?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false In what form are Series EE savings... SAVINGS BONDS, SERIES EE General Information § 351.4 In what form are Series EE savings bonds issued? Series EE savings bonds are issued in book-entry form. Effective January 1, 2012, Treasury...

  19. 31 CFR 351.1 - What regulations govern Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false What regulations govern Series EE... SAVINGS BONDS, SERIES EE General Information § 351.1 What regulations govern Series EE savings bonds? (a) The regulations in 31 CFR part 353 apply to definitive (paper) Series EE savings bonds that have...

  20. 31 CFR 351.41 - When are definitive Series EE savings bonds validly issued?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false When are definitive Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.41 When are definitive Series EE savings bonds validly issued? A definitive bond is validly issued when it is...

  1. 31 CFR 351.5 - What is the maturity period of a Series EE savings bond?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE savings bond? 351.5 Section 351.5 Money and Finance: Treasury Regulations Relating to Money and... UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.5 What is the maturity period of a Series EE savings bond?...

  2. 31 CFR 351.49 - How are definitive Series EE savings bonds delivered?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false How are definitive Series EE savings... UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.49 How are definitive Series EE savings bonds delivered? We deliver definitive bonds by mail to your address. If your...

  3. 31 CFR 351.1 - What regulations govern Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What regulations govern Series EE... SAVINGS BONDS, SERIES EE General Information § 351.1 What regulations govern Series EE savings bonds? (a) The regulations in 31 CFR part 353 apply to definitive (paper) Series EE savings bonds that have...

  4. 31 CFR 351.49 - How are definitive Series EE savings bonds delivered?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false How are definitive Series EE savings... UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.49 How are definitive Series EE savings bonds delivered? We deliver definitive bonds by mail to your address. If your...

  5. 31 CFR 351.5 - What is the maturity period of a Series EE savings bond?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Series EE savings bond? 351.5 Section 351.5 Money and Finance: Treasury Regulations Relating to Money and... UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.5 What is the maturity period of a Series EE savings bond?...

  6. 31 CFR 351.1 - What regulations govern Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false What regulations govern Series EE... SAVINGS BONDS, SERIES EE General Information § 351.1 What regulations govern Series EE savings bonds? (a) The regulations in 31 CFR part 353 apply to definitive (paper) Series EE savings bonds that have...

  7. 31 CFR 351.6 - When may I redeem my Series EE savings bond?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... before January 1, 2003. You may redeem your Series EE savings bond at any time beginning six months after... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false When may I redeem my Series EE... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings...

  8. Separation of e+e- → e+e- and e+e- → π+π- events based on the difference in the energy deposition profiles in SND detector calorimeter.

    NASA Astrophysics Data System (ADS)

    Achasov, M. N.; Kupich, A. S.

    2017-06-01

    The technique of discrimination of the e+e- → e+e- and e+e- → π+π- events in energy range 0.5 < √s < 1 GeV based on the difference in the energy deposition in calorimeter of SND detector was developed by applying machine learning method. Identification efficiency for e+e- → e+e- and e+e- → π+π- events is estimated to be in the range from 99.3 to 99.8%. Contribution of the identification efficiencies errors to the total error of e+e- → π+π- cross section is less than 0.2% for the most energy points.

  9. Proposed Injection into “Thief” Zone in EE-3

    SciTech Connect

    Potter, Robert M.; Grigsby, Charles O.

    1983-08-18

    This report seeks to understand the nature of the "thief" zone inside the EE-3 by pumping 150-200K gallons of heated water into that zone. The questions they seek to answer are; does the thief zone represent a potential danger to future operations in the form of earthquakes, aquifers, damage to equipment or tubulars, or require that it be sealed; is a connection into the the thief zone from EE-2 a disaster point; could the connection into the thief zone provide a low back-pressure condition.

  10. Expressed emotion, human agency, and schizophrenia: toward a new model for the EE-relapse association.

    PubMed

    Breitborde, Nicholas J K; López, Steven R; Nuechterlein, Keith H

    2009-03-01

    Although there is a clear statistical association between expressed emotion (EE) and schizophrenic relapse, our understanding of the mechanisms underlying this relationship is underdeveloped. This study tested a theoretical model in which caregivers' perceptions of their ill relative's agency underlie the EE-relapse association. To evaluate this model, we completed qualitative and quantitative analyses of narratives provided by individuals caring for a relative with schizophrenia. The results indicate that high-EE caregivers perceive the expression of symptoms as stemming from their ill relative's agency more frequently than low-EE caregivers. This was true for both high-EE-criticism and high-EE-emotional overinvolvement caregivers. High-EE and low-EE caregivers did not differ in their perceptions of the role of their ill relative's agency with regard to the control of symptoms. The findings suggest that EE may be a proxy risk factor for caregivers' perceptions of their ill relative's agency.

  11. ER-2 #809 on the SAGE III Ozone Loss and Validation Experiment (SOLVE) with pilot Dee Porter prepari

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Lockheed Martin pilot Dee Porter climbs up the ladder wearing a heavy tan pressure suit, preparing to board NASA ER-2 #809 at Kiruna, Sweden, for the third flight in the SAGE III Ozone Loss and Validation Experiment. Assisting him is Jim Sokolik, a Lockheed Martin life support technician. Number 809, one of Dryden's two high-flying ER-2 Airborne Science aircraft, a civilian variant of Lockheed's U-2, and another NASA flying laboratory, Dryden's DC-8, were based north of the Arctic Circle in Kiruna, Sweden during the winter of 2000 to study ozone depletion as part of the SAGE III Ozone Loss and Validation Experiment (SOLVE). A large hangar built especially for research, 'Arena Arctica' housed the instrumented aircraft and the scientists. Scientists have observed unusually low levels of ozone over the Arctic during recent winters, raising concerns that ozone depletion there could become more widespread as in the Antarctic ozone hole. The NASA-sponsored international mission took place between November 1999 and March 2000 and was divided into three phases. The DC-8 was involved in all three phases returning to Dryden between each phase. The ER-2 flew sample collection flights between January and March, remaining in Sweden from Jan. 9 through March 16. 'The collaborative campaign will provide an immense new body of information about the Arctic stratosphere,' said program scientist Dr. Michael Kurylo, NASA Headquarters. 'Our understanding of the Earth's ozone will be greatly enhanced by this research.' ER-2s bearing tail numbers 806 and 809 are used as airborne science platforms by NASA's Dryden Flight Research Center. The aircraft are platforms for a variety of high-altitude science missions flown over various parts of the world. They are also used for earth science and atmospheric sensor research and development, satellite calibration and data validation. The ER-2s are capable of carrying a maximum payload of 2,600 pounds of experiments in a nose bay, the main

  12. ER-2 #809 on the SAGE III Ozone Loss and Validation Experiment (SOLVE) with pilot Dee Porter prepari

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Lockheed Martin pilot Dee Porter climbs up the ladder wearing a heavy tan pressure suit, preparing to board NASA ER-2 #809 at Kiruna, Sweden, for the third flight in the SAGE III Ozone Loss and Validation Experiment. Assisting him is Jim Sokolik, a Lockheed Martin life support technician. Number 809, one of Dryden's two high-flying ER-2 Airborne Science aircraft, a civilian variant of Lockheed's U-2, and another NASA flying laboratory, Dryden's DC-8, were based north of the Arctic Circle in Kiruna, Sweden during the winter of 2000 to study ozone depletion as part of the SAGE III Ozone Loss and Validation Experiment (SOLVE). A large hangar built especially for research, 'Arena Arctica' housed the instrumented aircraft and the scientists. Scientists have observed unusually low levels of ozone over the Arctic during recent winters, raising concerns that ozone depletion there could become more widespread as in the Antarctic ozone hole. The NASA-sponsored international mission took place between November 1999 and March 2000 and was divided into three phases. The DC-8 was involved in all three phases returning to Dryden between each phase. The ER-2 flew sample collection flights between January and March, remaining in Sweden from Jan. 9 through March 16. 'The collaborative campaign will provide an immense new body of information about the Arctic stratosphere,' said program scientist Dr. Michael Kurylo, NASA Headquarters. 'Our understanding of the Earth's ozone will be greatly enhanced by this research.' ER-2s bearing tail numbers 806 and 809 are used as airborne science platforms by NASA's Dryden Flight Research Center. The aircraft are platforms for a variety of high-altitude science missions flown over various parts of the world. They are also used for earth science and atmospheric sensor research and development, satellite calibration and data validation. The ER-2s are capable of carrying a maximum payload of 2,600 pounds of experiments in a nose bay, the main

  13. 31 CFR 351.64 - What is the issue date of a book-entry Series EE savings bond?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Series EE savings bond? 351.64 Section 351.64 Money and Finance: Treasury Regulations Relating to Money... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.64 What is the issue date of a book-entry Series EE savings bond? The issue date of a book-entry Series EE savings...

  14. 31 CFR 351.64 - What is the issue date of a book-entry Series EE savings bond?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Series EE savings bond? 351.64 Section 351.64 Money and Finance: Treasury Regulations Relating to Money... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.64 What is the issue date of a book-entry Series EE savings bond? The issue date of a book-entry Series EE savings...

  15. 31 CFR 351.64 - What is the issue date of a book-entry Series EE savings bond?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...-entry Series EE savings bond? 351.64 Section 351.64 Money and Finance: Treasury Regulations Relating to... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.64 What is the issue date of a book-entry Series EE savings bond? The issue date of a book-entry Series EE savings...

  16. 32. SECTIONS AA, BB, CC, DD, AND EE WASTE CALCINATION ...

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

    32. SECTIONS A-A, B-B, C-C, D-D, AND E-E WASTE CALCINATION FACILITY SHOWING RELATIONSHIPS OF DIFFERENT FLOOR LEVELS TO ONE ANOTHER. INEEL DRAWING NUMBER 200-0633-00-287-106353. FLUOR NUMBER 5775-CPP-633-A-3. - Idaho National Engineering Laboratory, Old Waste Calcining Facility, Scoville, Butte County, ID

  17. Designing ee-Learning Environments: Lessons from an Online Workshop

    ERIC Educational Resources Information Center

    Godwin, Lindsey; Kaplan, Soren

    2008-01-01

    Based on their work leading three experiential, online workshops with over 180 participants from around the world, Lindsey Godwin and Soren Kaplan share reflections on designing and conducting successful ee-learning courses. The workshops sought to translate a popular face-to-face seminar in appreciative inquiry, an increasingly popular…

  18. e+e- → charm cross sections via ISR

    NASA Astrophysics Data System (ADS)

    Pakhlova, Galina

    2010-06-01

    We discuss recent measurements of exclusive e+e- cross sections for charmed hadron final states near threshold performed by Belle and BABAR. The results are based on a study of events with initial-state-radiation photons in a large data sample collected with the Belle and BABAR detectors at the γ(4S) resonance and nearby continuum.

  19. Designing ee-Learning Environments: Lessons from an Online Workshop

    ERIC Educational Resources Information Center

    Godwin, Lindsey; Kaplan, Soren

    2008-01-01

    Based on their work leading three experiential, online workshops with over 180 participants from around the world, Lindsey Godwin and Soren Kaplan share reflections on designing and conducting successful ee-learning courses. The workshops sought to translate a popular face-to-face seminar in appreciative inquiry, an increasingly popular…

  20. EE and ESD: Two Paradigms, One Crucial Goal

    ERIC Educational Resources Information Center

    McKeown, Rosalyn; Hopkins, Chuck

    2005-01-01

    The launch of the United Nations Decade of Education for Sustainable Development (UNDESD) gives the education community opportunity to reflect on and discuss major issues that will affect the future well-being of the world. The goals and dreams of environmental education (EE) are similar to those of educators involved in education for sustainable…

  1. Research Trends in the United States: EE to ESD

    ERIC Educational Resources Information Center

    Heimlich, Joe E.

    2007-01-01

    Research on education for sustainable development (ESD) is not a unified body of work and, much like the literature for environmental education (EE), research is published in many arenas. The trends, however, capture some of the major foci of the research that is emerging on ESD, especially in the early years of the Decade of Education for…

  2. EE and ESD: Two Paradigms, One Crucial Goal

    ERIC Educational Resources Information Center

    McKeown, Rosalyn; Hopkins, Chuck

    2005-01-01

    The launch of the United Nations Decade of Education for Sustainable Development (UNDESD) gives the education community opportunity to reflect on and discuss major issues that will affect the future well-being of the world. The goals and dreams of environmental education (EE) are similar to those of educators involved in education for sustainable…

  3. Pilot Fullerton dons ejection escape suit (EES) on middeck

    NASA Image and Video Library

    1982-03-30

    STS003-23-165 (22-30 March 1982) --- Astronaut Gordon Fullerton, STS-3 pilot, dons ejection escape suit (EES) (high altitude pressure garment) life preserver unit (LPU) on forward port side of middeck above potable water tank. Fullerton also adjusts lapbelt fitting and helmet holddown strap. Photo credit: NASA

  4. A chromatographic estimate of the degree of surface heterogeneity of reversed-phase liquid chromatography packing materials II-Endcapped monomeric C18-bonded stationary phase

    SciTech Connect

    Gritti, Fabrice; Guiochon, Georges A

    2006-01-01

    In a previous report, the heterogeneity of a non-endcapped C{sub 30}-bonded stationary phase was investigated, based on the results of the measurements of the adsorption isotherms of two neutral compounds (phenol and caffeine) and two ionizable compounds (sodium naphthalene sulfonate and propranololium chloride) by frontal analysis (FA). The same method is applied here for the characterization of the surface heterogeneity of two new brands of endcapped C{sub 18}-bonded stationary phases (Gemini and Sunfire). The adsorption isotherms of the same four chemicals were measured by FA and the results confirmed by the independent calculation of the adsorption energy distribution (AED), using the expectation-maximization (EM) method. The effect of the length of the bonded alkyl chain was investigated. Shorter alkyl-bonded-chains (C{sub 18} versus C{sub 30}) and the end-capping of the silica surface contribute to decrease the surface heterogeneity under the same experimental conditions (30% methanol, 25 mM NaCl). The AEDs of phenol and caffeine are bimodal with the C{sub 18}-bonded columns while they are trimodal and quadrimodal, respectively, with a non-endcapped C{sub 30}-bonded column. The 'supersites' (adsorption energy >20 kJ/mol) found on the C{sub 30}-Prontosil column and attributed to a cation exchange mechanism completely disappear on the C{sub 18}-Gemini and C{sub 18}-Sunfire, probably because the end-capping of the silica surface eliminates most if not all the ionic interactions.

  5. Bathymetric, Velocity, Streamflow, and Dissolved Oxygen Data on the Pee Dee River near Bostick Boat Landing, Florence County, South Carolina, May-August 2007

    USGS Publications Warehouse

    Shelton, John M.

    2009-01-01

    Santee Cooper is planning to construct an electricity generating station in southeastern Florence County near the Kingsburg community. As part of this project, a water-intake structure will be constructed on the Pee Dee River near the Bostick Boat Landing, which is located east of the intersection of State secondary roads S-21-57 and S-21-66. Velocity, bathymetric, and dissolved oxygen data are needed to help determine the location for the water-intake structure. The U.S. Geological Survey (USGS), in cooperation with Santee Cooper, collected these data at three different flow regimes during the period of May through August 2007. Data were collected along 15 transects located at 50-foot intervals starting 400 feet upstream from the boat landing and continuing to 300 feet downstream from the boat landing. All data were geographically referenced using a differentially corrected global positioning system (GPS).

  6. Edema of the interarytenoid mucosa seen on endoscopy is related to endoscopic-positive esophagitis (EE) and is an independent predictor of EE.

    PubMed

    Kondo, Yoshihiro; Ogasawara, Naotaka; Sasaki, Makoto; Arimoto, Mariko; Yanamoto, Kenichiro; Nishimura, Kunihiro; Noda, Hisatsugu; Okaniwa, Noriko; Ogawa, Tetsuya; Kasugai, Kunio

    2013-11-01

    Laryngopharyngeal reflux (LPR) is defined as the retrograde flow of gastric contents up through the esophagus to the larynx and hypopharynx; this is an extra-esophageal manifestation of gastroesophageal reflux disease (GERD). Although both LPR and GERD are caused by reflux of stomach contents, their clinical presentations and treatments differ. In the present study, we assessed esophago-gastroendoscopic findings related to GERD, specifically endoscopic-positive esophagitis (EE), laryngopharyngeal findings, and GERD symptoms on the 12-question frequency scale for the symptoms of gastroesophageal reflux disease (FSSG). Then, independent predictors of EE were analyzed, and relationships among EE, laryngopharyngeal findings, and patients' symptoms and characteristics were investigated. Hiatal hernia (odds ratio [OR]: 2.70; 95% confidence interval [CI]: 1.17-6.23, P-value 0.019) and edema of theinterarytenoid mucosa (OR, 3.77; 95% CI, 1.26-16.3; P-value 0.035) were significantly related with EE and independent predictors of EE. However, patients' characteristics and the FSSG score had no significant relationship with EE; there was no relationship between patients' characteristics and EE, regardless of its severity. Although LPR symptoms had no significant relationship with the findings of EE, hiatal hernia and edema of the interarytenoid mucosa were significantly related with EE and were considered to be independent predictors of EE. © 2013 The Authors. Digestive Endoscopy © 2013 Japan Gastroenterological Endoscopy Society.

  7. An improved limit for Γee of X (3872) and Γee measurement of ψ (3686)

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Baldini Ferroli, R.; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Bondarenko, O.; Boyko, I.; Briere, R. A.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Cronin-Hennessy, D.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, X. Y.; Gao, Y.; Gao, Z.; Garzia, I.; Geng, C.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, Y.; Guo, Y. P.; Haddadi, Z.; Hafner, A.; Han, S.; Han, Y. L.; Hao, X. Q.; Harris, F. A.; He, K. L.; He, Z. Y.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. M.; Huang, G. S.; Huang, H. P.; Huang, J. S.; Huang, X. T.; Huang, Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. L.; Jiang, L. W.; Jiang, X. S.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Ke, B. C.; Kliemt, R.; Kloss, B.; Kolcu, O. B.; Kopf, B.; Kornicer, M.; Kühn, W.; Kupsc, A.; Lai, W.; Lange, J. S.; Lara, M.; Larin, P.; Leng, C.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. M.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Lin, D. X.; Liu, B. J.; Liu, C. X.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, X. X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqiang; Liu, Zhiqing; Loehner, H.; Lou, X. C.; Lu, H. J.; Lu, J. G.; Lu, R. Q.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lv, M.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, S.; Ma, T.; Ma, X. N.; Ma, X. Y.; Maas, F. E.; Maggiora, M.; Malik, Q. A.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Messchendorp, J. G.; Min, J.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales Morales, C.; Moriya, K.; Muchnoi, N. Yu.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Poling, R.; Pu, Y. N.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Y.; Qin, Z. H.; Qiu, J. F.; Rashid, K. H.; Redmer, C. F.; Ren, H. L.; Ripka, M.; Rong, G.; Ruan, X. D.; Santoro, V.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; Thorndike, E. H.; Tiemens, M.; Toth, D.; Ullrich, M.; Uman, I.; Varner, G. S.; Wang, B.; Wang, B. L.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, Q. J.; Wang, S. G.; Wang, W.; Wang, X. F.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Wei, J. B.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, Q. N.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. X.; Yang, L.; Yang, Y.; Yang, Y. X.; Ye, H.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, H. W.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; Zafar, A. A.; Zallo, A.; Zeng, Y.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, S. H.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, Li; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.

    2015-10-01

    Using the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e+e- →γISR X (3872) →γISRπ+π- J / ψ via the Initial State Radiation technique. The production of a resonance with quantum numbers JPC =1++ such as the X (3872) via single photon e+e- annihilation is forbidden, but is allowed by a next-to-leading order box diagram. We do not observe a significant signal of X (3872), and therefore give an upper limit for the electronic width times the branching fraction ΓeeX (3872) B (X (3872) →π+π- J / ψ) < 0.13 eV at the 90% confidence level. This measurement improves upon existing limits by a factor of 46. Using the same final state, we also measure the electronic width of the ψ (3686) to be Γeeψ (3686) = 2213 ±18stat ±99sys eV.

  8. Algorithm and implementation of muon trigger and data transmission system for barrel-endcap overlap region of the CMS detector

    NASA Astrophysics Data System (ADS)

    Zabolotny, W. M.; Byszuk, A.

    2016-03-01

    The CMS experiment Level-1 trigger system is undergoing an upgrade. In the barrel-endcap transition region, it is necessary to merge data from 3 types of muon detectors—RPC, DT and CSC. The Overlap Muon Track Finder (OMTF) uses the novel approach to concentrate and process those data in a uniform manner to identify muons and their transversal momentum. The paper presents the algorithm and FPGA firmware implementation of the OMTF and its data transmission system in CMS. It is foreseen that the OMTF will be subject to significant changes resulting from optimization which will be done with the aid of physics simulations. Therefore, a special, high-level, parameterized HDL implementation is necessary.

  9. Free Volume and Swelling in Thin Films of Poly(N-isopropylacrylamide) End-Capped with n-Butyltrithiocarbonate.

    PubMed

    Harms, S; Rätzke, K; Faupel, F; Egger, W; Ravello, L; Laschewsky, A; Wang, W; Müller-Buschbaum, P

    2010-08-03

    The free volume in thin films of poly(N-isopropylacrylamid) end-capped with n-butyltriocarbonate (nbc-PNIPAM) is probed with positron annihilation lifetime spectroscopy (PALS). The PALS measurements are performed as function of energy to obtain depth profiles of the free volume of nbc-PNIPAM films. The range of nbc-PNIPAM films with thicknesses from 40 to 200 nm is focused. With decreasing film thickness the free volume increases in good agreement with an increase in the maximum swelling capability of the nbc-PNIPAM films. Thus in thin hydrogel films the sorption and swelling behavior is governed by free volume. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  10. Enantiopure versus Racemic Naphthalimide End-Capped Helicenic Non-fullerene Electron Acceptors: Impact on Organic Photovoltaics Performance.

    PubMed

    Josse, Pierre; Favereau, Ludovic; Shen, Chengshuo; Dabos-Seignon, Sylvie; Blanchard, Philippe; Cabanetos, Clément; Crassous, Jeanne

    2017-05-05

    Impact of the enantiopurity on organic photovoltaics (OPV) performance was investigated through the synthesis of racemic and enantiomerically pure naphthalimide end-capped helicenes and their application as non-fullerene molecular electron acceptors in OPV devices. A very strong increase of the device performance was observed by simply switching from the racemic to the enantiopure forms of these π-helical non-fullerene acceptors with power conversion efficiencies jumping from 0.4 to about 2.0 % in air-processed poly(3-hexylthiophene)-based devices, thus highlighting the key role of enantiopurity in the photovoltaic properties. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  11. Neutron and Proton Tests of Different Technologies for the Upgrade of Cold Readout Electronics of the Atlas Hadronic Endcap Calorimeter

    NASA Astrophysics Data System (ADS)

    Nagel, M.

    2012-08-01

    The expected increase of total integrated luminosity by a factor of ten at the HL-LHC compared to the design goals for LHC essentially eliminates the safety factor for radiation hardness realized at the current cold amplifiers of the ATLAS Hadronic Endcap Calorimeter (HEC). New more radiation hard technologies have been studied: SiGe bipolar, Si CMOS FET and GaAs FET transistors have been irradiated with neutrons up to an integrated fluence of 2.2 · 1016 n/cm2 and with 200 MeV protons up to an integrated fluence of 2.6 · 1014 p/cm2. Comparisons of transistor parameters such as the gain for both types of irradiations are presented.

  12. Removal of a femoral nail with osseous overgrowth at the end-cap: A navigated and cannulated minimally invasive technique.

    PubMed

    Marintschev, Ivan; Rausch, Sascha; Fujak, Albert; Klos, Kajetan; Hofmann, Gunther O; Gras, Florian

    2013-01-01

    Intramedullary nail removal can be demanding, especially in cases of implant breakage or bony overgrowth at the end-cap, if the exact insertion depth of the nail is neglected in the index surgery. In the presented case, two challenging nail removals were necessary. The first was performed in a re-nailing procedure due to a pseudarthrosis with implant breakage, and the second was performed during hardware removal after fracture healing in a situation where there was deep intramedullary placement of the exchange nail. For the second implant removal a minimally invasive approach based on instrument placements over a navigated guide-wire was used to reduce the iatrogenic morbidity associated with an extensive open approach to the nail and to decrease the radiation exposure for the patient and the operating team.

  13. Pilot Fullerton dons EES anti-gravity suit lower torso on middeck

    NASA Technical Reports Server (NTRS)

    1982-01-01

    Pilot Fullerton dons ejection escape suit (EES) anti-gravity (anti-g) suit lower torso on forward port side middeck above potable water tank. Anti-g suit is an olive drab inner garment that complements EES.

  14. 31 CFR 351.8 - When is interest payable on Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings...

  15. 31 CFR 351.6 - When may I redeem my Series EE savings bond?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings...

  16. 31 CFR 351.6 - When may I redeem my Series EE savings bond?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings...

  17. 31 CFR 351.8 - When is interest payable on Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings...

  18. (Photo)physical Properties of New Molecular Glasses End-Capped with Thiophene Rings Composed of Diimide and Imine Units

    PubMed Central

    2014-01-01

    New symmetrical arylene bisimide derivatives formed by using electron-donating–electron-accepting systems were synthesized. They consist of a phthalic diimide or naphthalenediimide core and imine linkages and are end-capped with thiophene, bithiophene, and (ethylenedioxy)thiophene units. Moreover, polymers were obtained from a new diamine, N,N′-bis(5-aminonaphthalenyl)naphthalene-1,4,5,8-dicarboximide and 2,5-thiophenedicarboxaldehyde or 2,2′-bithiophene-5,5′-dicarboxaldehyde. The prepared azomethine diimides exhibited glass-forming properties. The obtained compounds emitted blue light with the emission maximum at 470 nm. The value of the absorption coefficient was determined as a function of the photon energy using spectroscopic ellipsometry. All compounds are electrochemically active and undergo reversible electrochemical reduction and irreversible oxidation processes as was found in cyclic voltammetry and differential pulse voltammetry (DPV) studies. They exhibited a low electrochemically (DPV) calculated energy band gap (Eg) from 1.14 to 1.70 eV. The highest occupied molecular orbital and lowest unoccupied molecular orbital levels and Eg were additionally calculated theoretically by density functional theory at the B3LYP/6-31G(d,p) level. The photovoltaic properties of two model compounds as the active layer in organic solar cells in the configuration indium tin oxide/poly(3,4-(ethylenedioxy)thiophene):poly(styrenesulfonate)/active layer/Al under an illumination of 1.3 mW/cm2 were studied. The device comprising poly(3-hexylthiophene) with the compound end-capped with bithiophene rings showed the highest value of Voc (above 1 V). The conversion efficiency of the fabricated solar cell was in the range of 0.69–0.90%. PMID:24966893

  19. Self-Assembly of Telechelic Tyrosine End-Capped PEO and Poly(alanine) Polymers in Aqueous Solution.

    PubMed

    Kirkham, Steven; Castelletto, Valeria; Hamley, Ian William; Reza, Mehedi; Ruokolainen, Janne; Hermida-Merino, Daniel; Bilalis, Panayiotis; Iatrou, Hermis

    2016-03-14

    The self-assembly in aqueous solution of three novel telechelic conjugates comprising a central hydrophilic polymer and short (trimeric or pentameric) tyrosine end-caps has been investigated. Two of the conjugates have a central poly(oxyethylene) (polyethylene oxide, PEO) central block with different molar masses. The other conjugate has a central poly(L-alanine) (PAla) sequence in a purely amino-acid based conjugate. All three conjugates self-assemble into β-sheet based fibrillar structures, although the fibrillar morphology revealed by cryogenic-TEM is distinct for the three polymers--in particular the Tyr5-PEO6k-Tyr5 forms a population of short straight fibrils in contrast to the more diffuse fibril aggregates observed for Tyr5-PEO2k-Tyr5 and Tyr3-PAla-Tyr3. Hydrogel formation was not observed for these samples (in contrast to prior work on related systems) up to quite high concentrations, showing that it is possible to prepare solutions of peptide-polymer-peptide conjugates with hydrophobic end-caps without conformational constraints associated with hydrogelation. The Tyr5-PEO6k-Tyr5 shows significant PEO crystallization upon drying in contrast to the Tyr5-PEO2k-Tyr5 conjugate. Our findings point to the remarkable ability of short hydrophobic peptide end groups to modulate the self-assembly properties of polymers in solution in model peptide-capped "associative polymers". Retention of fluidity at high conjugate concentration may be valuable in potential future applications of these conjugates as bioresponsive or biocompatible materials, for example exploiting the enzyme-responsiveness of the tyrosine end-groups.

  20. A chromatographic estimate of the degree of surface heterogeneity of RPLC packing materials. III. Endcapped amido-embedded reversed phase

    SciTech Connect

    Gritti, Fabrice; Guiochon, Georges A

    2006-01-01

    The difference in adsorption behavior between a conventional monomeric endcapped C{sub 18} stationary phase (3.43 {micro}mol/m{sup 2}) and an endcapped polymeric RP-Amide phase (3.31 {micro}mol/m{sup 2}) was investigated. The adsorption isotherms of four compounds (phenol, caffeine, sodium 2-naphthalene sulfonate, and propranololium chloride) were measured by frontal analysis (FA) and the degree of heterogeneity of each phase for each solute was characterized by their adsorption energy distributions (AED), derived using the Expectation-Maximization method. The results show that only certain analytes (phenol and 2-naphthalene sulfonate) are sensitive to the presence of the polar embedded amide groups within the RP phase. Their binding constants on the amide-bonded phase are significantly higher than on conventional RPLC phases. Furthermore, an additional type of adsorption sites was observed for these two compounds. However, these sites having a low density, their presence does not affect much the retention factors of the two analytes. On the other hand, the adsorption behavior of the other two analytes (caffeine and propranololium chloride) is almost unaffected by the presence of the amide group in the bonded layer. Strong selective interactions may explain these observations. For example, hydrogen-bond interactions between an analyte (e.g., phenol or naphthalene sulfonate) and the carbonyl group (acceptor) or the nitrogen (donor) of the amido-embedded group may take place. No such interactions may take place with either caffeine or the cation propranololium chloride. This study confirms the hypothesis that analytes have ready access to locations deep inside the bonded layer, where the amide groups are present.

  1. (Photo)physical Properties of New Molecular Glasses End-Capped with Thiophene Rings Composed of Diimide and Imine Units.

    PubMed

    Grucela-Zajac, Marzena; Bijak, Katarzyna; Kula, Slawomir; Filapek, Michal; Wiacek, Malgorzata; Janeczek, Henryk; Skorka, Lukasz; Gasiorowski, Jacek; Hingerl, Kurt; Sariciftci, Niyazi Serdar; Nosidlak, Natalia; Lewinska, Gabriela; Sanetra, Jerzy; Schab-Balcerzak, Ewa

    2014-06-19

    New symmetrical arylene bisimide derivatives formed by using electron-donating-electron-accepting systems were synthesized. They consist of a phthalic diimide or naphthalenediimide core and imine linkages and are end-capped with thiophene, bithiophene, and (ethylenedioxy)thiophene units. Moreover, polymers were obtained from a new diamine, N,N'-bis(5-aminonaphthalenyl)naphthalene-1,4,5,8-dicarboximide and 2,5-thiophenedicarboxaldehyde or 2,2'-bithiophene-5,5'-dicarboxaldehyde. The prepared azomethine diimides exhibited glass-forming properties. The obtained compounds emitted blue light with the emission maximum at 470 nm. The value of the absorption coefficient was determined as a function of the photon energy using spectroscopic ellipsometry. All compounds are electrochemically active and undergo reversible electrochemical reduction and irreversible oxidation processes as was found in cyclic voltammetry and differential pulse voltammetry (DPV) studies. They exhibited a low electrochemically (DPV) calculated energy band gap (Eg) from 1.14 to 1.70 eV. The highest occupied molecular orbital and lowest unoccupied molecular orbital levels and Eg were additionally calculated theoretically by density functional theory at the B3LYP/6-31G(d,p) level. The photovoltaic properties of two model compounds as the active layer in organic solar cells in the configuration indium tin oxide/poly(3,4-(ethylenedioxy)thiophene):poly(styrenesulfonate)/active layer/Al under an illumination of 1.3 mW/cm(2) were studied. The device comprising poly(3-hexylthiophene) with the compound end-capped with bithiophene rings showed the highest value of Voc (above 1 V). The conversion efficiency of the fabricated solar cell was in the range of 0.69-0.90%.

  2. Validation of the emotional eating scale adapted for use in children and adolescents (EES-C).

    PubMed

    Tanofsky-Kraff, Marian; Theim, Kelly R; Yanovski, Susan Z; Bassett, Allison M; Burns, Noel P; Ranzenhofer, Lisa M; Glasofer, Deborah R; Yanovski, Jack A

    2007-04-01

    Eating in response to negative emotions is associated with binge or loss of control (LOC) eating in adults. Although children report engaging in LOC eating, data on emotional eating among youth are limited. We adapted the adult Emotional Eating Scale (Arnow et al., Int J Eat Disord, 18, 79-90, 1995) to be used with children and adolescents (EES-C). Fifty-nine overweight (BMI > or = 95th percentile for age and sex) and 100 non-overweight (BMI 5th-94th percentile) participants (mean age +/- SD 14.3 +/- 2.4 years) completed the EES-C, and measures of recent LOC eating and general psychopathology. Test-retest reliability was assessed in 64 children over a 3.4 +/- 2.6 month interval. A factor analysis generated three subscales: eating in response to anxiety, anger, and frustration (EES-C-AAF), depressive symptoms (EES-C-DEP), and feeling unsettled (EES-C-UNS). Internal consistency for the subscales was established; Cronbach's alphas for the EES-C-AAF, EES-C-DEP, and EES-C-UNS were 0.95, 0.92, and 0.83, respectively. The EES-C had good convergent validity: children reporting recent LOC eating episodes scored higher on all subscales (p's < 0.05). The EES-C-AAF and EES-C-UNS subscales demonstrated good discriminant validity and the EES-C-DEP revealed adequate discriminant validity. Intra-class correlation coefficients revealed good temporal stability for each subscale (EES-C-AAF = 0.59, EES-C-DEP = 0.74, EES-C-UNS = 0.66; p's < 0.001). The EES-C has good convergent and discriminant validity, and test-retest reliability for assessing emotional eating in children. Further investigation is required to clarify the role emotional eating may play in children's energy intake and body weight.

  3. 31 CFR 351.5 - What is the maturity period of a Series EE savings bond?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false What is the maturity period of a... UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.5 What is the maturity period of a Series EE savings bond? Series...

  4. 31 CFR 351.5 - What is the maturity period of a Series EE savings bond?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false What is the maturity period of a... UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.5 What is the maturity period of a Series EE savings bond? Series...

  5. The clinical utility of fetal cell sorting to determine prenatally fetal E/e or e/e Rh genotype from peripheral maternal blood.

    PubMed

    Geifman-Holtzman, O; Makhlouf, F; Kaufman, L; Gonchoroff, N J; Holtzman, E J

    2000-08-01

    This study was undertaken to determine the fetal E/e or e/e Rh genotype prenatally from peripheral maternal blood by examining sorted fetal cells from alloimmunized and nonalloimmunized pregnancies. Eighteen maternal peripheral venous blood samples were obtained before amniocentesis from 15 pregnant women who were homozygous for the e allele. Five were not alloimmunized and 10 were alloimmunized. The mononuclear cell layer was isolated from the maternal blood and enriched for fetal nucleated red blood cells by flow cytometry with monoclonal antibodies to CD36 or CD71 and to glycophorin A. Eight samples were treated with CD45 monoclonal antibody-coated magnetic beads before they were sorted to deplete the maternal sample of leukocytes (CD45(+) cells). We defined the positive fetal cell fractions as the monoclonal antibody positive-sorted cells derived from the maternal samples. These included sorted cells that were CD36(+)/glycophorin A(+), CD71(+)/glycophorin A(+) and CD45(-) cells that were sorted to become CD45(-)/CD36(+)/glycophorin A(+) or CD45(-)/CD71(+)/glycophorin A(+). The negative fractions were the cells that were negative for either CD36/glycophorin A or CD71/glycophorin A or were the CD45(+) cells. Deoxyribonucleic acid was isolated from all fractions and amplified by polymerase chain reaction with allele-specific primers for the E or e Rh genes. Gel electrophoresis was performed to detect fetal E/e or e/e Rh genotype. The fetal E/e or e/e Rh genotype was confirmed by serologic and deoxyribonucleic acid testing. The accuracy of E/e or e/e Rh genotype determination from the positive cell fractions was compared with that of E/e or e/e Rh genotype determination from the negative fractions. Fetal E/e or e/e Rh genotype was determined correctly in 17 of 18 of the fetal cell enriched positive fractions (94%). Fetal E/e or e/e Rh genotype was determined correctly in 11 of 14 of the maternal samples in the negative unselected cell fractions (79%). Fetal E/e or

  6. Ultralow thermal conductivity in Electrolessly Etched (EE) Silicon Nanowires

    NASA Astrophysics Data System (ADS)

    Hippalgaonkar, Kedar; Chen, Renkun; Budaev, Bair; Tang, Jinyao; Andrews, Sean; Murphy, Padraig; Mukerjee, Subroto; Moore, Joel; Yang, Peidong; Majumdar, Arun

    2009-03-01

    EE process produces single-crystalline Silicon nanowires with rough walls. We use suspended structures to directly compute the heat transfer through single nanowires. Nanowires with diameters less than the mean free path of phonons impede transport by boundary scattering. The roughness acts as a secondary scattering mechanism to further reduce phonon transport. By controlling the amount of roughness it is possible to push limits to the extent that nanowire conductance close to quanta of thermal conductance,πkB^2 T / πkB^2 T 6 . - 6 is observed. Traditionally, the lower limit of conductivity is amorphous Silicon at 1 W/mK at room temperature. The measured conductivity of our nanostructures challenges even this amorphous limit pointing towards previously unstudied mechanisms of thermal resistance. We measure thermal conductivity of ˜150nm diameter EE wires to be ˜1 W/mK.

  7. EE-3A Logging Report for Feb. 28th., 1994

    SciTech Connect

    Anderson, David W.

    1994-03-14

    A Temperature/Casing-Collar Locator (CCL) log of EE-3A was performed on Monday, February 28th, 1994. This log was the first of two, (the other to be run on March 31st.), in an attempt to investigate a temperature anomaly occurring between 10,000 to 11,435 ft. The thermal recovery of this zone is slower than expected, which is believed to be caused by either; flow through the cemented zone of the 5 1/2" liner, or an upward flow through the reservoir itself. Now that the first log is over, the annulus of EE-3A will be shut-in for a period of approximately one month, at which time the log will be repeated. If the temperature of this zone shows signs of recovery after the shut-in period, the integrity of the cement will be in question. No sign of recovery will point to upward reservoir flow theory.

  8. SiW ECAL for future e+e- collider

    NASA Astrophysics Data System (ADS)

    Balagura, V.; Bilokin, S.; Bonis, J.; Boudry, V.; Brient, J.-C.; Callier, S.; Cheng, T.; Cornat, R.; De La Taille, C.; Doan, T. H.; Frotin, M.; Gastaldi, F.; Hirai, H.; Jain, S.; Jain, Sh.; Lacour, D.; Lavergne, L.; Lleres, A.; Magniette, F.; Mastrolorenzo, L.; Nanni, J.; Poeschl, R.; Pozdnyakov, A.; Psallidas, A.; Ruan, M.; Rubio-Roy, M.; Seguin-Moreau, N.; Shpak, K.; Suehara, T.; Thiebault, A.; Wright, J.; Yu, D.

    2017-07-01

    Calorimeters with silicon detectors have many unique features and are proposed for several world-leading experiments. We discuss the tests of the first three 18×18 cm2 layers segmented into 1024 pixels of the technological prototype of the silicon-tungsten electromagnetic calorimeter for a future e+e- collider. The tests have beem performed in November 2015 at CERN SPS beam line.

  9. Experiment 2003 – First Pressurization of EE-2

    SciTech Connect

    Murphy, Hugh D.; Matsunaga, Isao; Kuriyagawa, Michio

    1982-01-07

    Water was pumped into EE-2 at a nominal rate of 9gpm, to a final pressure of 2070 psi. The wellbore was exceptionally tight we might just have well pumped into a steel pressure vessel not only was there no evidence of breakdown, but only a total of about 30 gallons of water permeated the rock during the 2-1/2 hour-long pressurization.

  10. Observation of η'→ω e+e-

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Ferroli, R. Baldini; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Boyko, I.; Briere, R. A.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; de Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Duan, P. F.; Eren, E. E.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, X. Y.; Gao, Y.; Gao, Z.; Garzia, I.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, Y.; Guo, Y. P.; Haddadi, Z.; Hafner, A.; Han, S.; Hao, X. Q.; Harris, F. A.; He, K. L.; He, X. Q.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. M.; Huang, G. S.; Huang, J. S.; Huang, X. T.; Huang, Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. W.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Ke, B. C.; Kiese, P.; Kliemt, R.; Kloss, B.; Kolcu, O. B.; Kopf, B.; Kornicer, M.; Kühn, W.; Kupsc, A.; Lange, J. S.; Lara, M.; Larin, P.; Leng, C.; Li, C.; Li, Cheng; Li, D. M.; Li, F.; Li, F. Y.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. M.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Lin, D. X.; Liu, B. J.; Liu, C. X.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. B.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqing; Loehner, H.; Lou, X. C.; Lu, H. J.; Lu, J. G.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, T.; Ma, X. N.; Ma, X. Y.; Maas, F. E.; Maggiora, M.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Messchendorp, J. G.; Min, J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales, C. Morales; Moriya, K.; Muchnoi, N. Yu.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Poling, R.; Prasad, V.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Rashid, K. H.; Redmer, C. F.; Ripka, M.; Rong, G.; Rosner, Ch.; Ruan, X. D.; Santoro, V.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; Thorndike, E. H.; Tiemens, M.; Ullrich, M.; Uman, I.; Varner, G. S.; Wang, B.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, S. G.; Wang, W.; Wang, X. F.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Wei, J. B.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, H.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. J.; Yang, H. X.; Yang, L.; Yang, Y.; Yang, Y. X.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; Zafar, A. A.; Zallo, A.; Zeng, Y.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. N.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Yu; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, S. H.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.; Besiii Collaboration

    2015-09-01

    Based on a sample of η' mesons produced in the radiative decay J /ψ →γ η' in 1.31 ×109 J /ψ events collected with the BESIII detector, the decay η'→ω e+e- is observed for the first time, with a statistical significance of 8 σ . The branching fraction is measured to be B (η'→ω e+e-)=(1.97 ±0.34 (stat)±0.17 (syst))×10-4 , which is in agreement with theoretical predictions. The branching fraction of η'→ω γ is also measured to be (2.55 ±0.03 (stat)±0.16 (syst))×10-2 , which is the most precise measurement to date, and the relative branching fraction B/(η'→ω e+e-) B (η'→ω γ ) is determined to be (7.71 ±1.34 (stat)±0.54 (syst))×10-3 .

  11. Dark photon search at a circular e+e- collider

    NASA Astrophysics Data System (ADS)

    He, Min; He, Xiao-Gang; Huang, Cheng-Kai

    2017-08-01

    One of the interesting portals linking a dark sector and the Standard Model (SM) is the kinetic mixing between the SM U(1)Y field with a new dark photon A‧ from a U(1)A‧ gauge interaction. Stringent limits have been obtained for the kinetic mixing parameter 𝜖 through various processes. In this work, we study the possibility of searching for a dark photon interaction at a circular e+e- collider through the process e+e-→ γA‧→ γμ+μ-. We find that the constraint on 𝜖2 for dark photon mass in the few tens of GeV range, assuming that the μ+μ- invariant mass can be measured to an accuracy of 0.5% mA‧, can be better than 3 × 10-6 for the proposed CEPC with a 10-year running at 3σ (statistic) level, and better than 2 × 10-6 for FCC-ee with even just one-year running at s = 240GeV, better than the LHCb, ATLAS, CMS experiments and other facilities can do in a similar dark photon mass range. For FCC-ee, running at s = 160GeV, the constraint can be even better.

  12. (3-aminopropyl)-4-methylpiperazine end-capped poly(1,4-butanediol diacrylate-co-4-amino-1-butanol)-based multilayer films for gene delivery.

    PubMed

    Li, Cuicui; Tzeng, Stephany Y; Tellier, Liane E; Green, Jordan J

    2013-07-10

    Biodegradable polyelectrolyte surfaces for gene delivery were created through electrospinning of biodegradable polycations combined with iterative solution-based multilayer coating. Poly(β-amino ester) (PBAE) poly(1,4-butanediol diacrylate-co-4-amino-1-butanol) end-capped with 1-(3-aminopropyl)-4-methylpiperazine was utilized because of its ability to electrostatically interact with anionic molecules like DNA, its biodegradability, and its low cytotoxicity. A new DNA release system was developed for sustained release of DNA over 24 h, accompanied by high exogenous gene expression in primary human glioblastoma (GB) cells. Electrospinning a different PBAE, poly(1,4-butanediol diacrylate-co-4,4'-trimethylenedipiperidine), and its combination with polyelectrolyte 1-(3-aminopropyl)-4-methylpiperazine end-capped poly(1,4-butanediol diacrylate-co-4-amino-1-butanol)-based multilayers are promising for DNA release and intracellular delivery from a surface.

  13. The effect of ethinylestradiol (EE)/cyproterone acetate (CA) and EE/CA plus metformin treatment on adhesion molecules in cases with polycystic ovary syndrome (PCOS).

    PubMed

    Bilgir, Oktay; Kebapcilar, Levent; Taner, Cuneyt; Bilgir, Ferda; Kebapcilar, Ayse; Bozkaya, Giray; Yildiz, Yasar; Yuksel, Arif; Sari, Ismail

    2009-01-01

    To determine if EE/CA and EE/CA plus metformin treatment have any effect on adhesion molecules in cases with PCOS. Among 40 patients diagnosed with PCOS, one study arm was administered EE/CA (n=20, cyproterone acetate 2 mg, ethinylestradiol 35 microg) and the other was administered metformin (1,700 mg) combined with EE/CA (n=20, cyproterone acetate 2 mg, ethinylestradiol 35 microg). Soluble intercellular adhesion molecule-1 (sICAM-1), soluble endothelial leukocyte adhesion molecule-1 (sE-selectin), soluble vascular cell adhesion molecule-1 (sVCAM-1), soluble leukocyte endothelial cell adhesion molecule-3 (sP-selectin), lipid profile, androgens, insulin, and HOMA-IR values were assessed prior to treatment and after 3 months of therapy. The comparison of the groups receiving EE/CA and EE/CA+metformin revealed a significant reduction in sVCAM (1,445+/-614 vs 1,167+/-482, p<0.05) and sICAM (442+/-141 vs 345+/-118, p<0.05) values relative to pre-treatment values while no significant changes were detected in sE-selectin and sP-selectin levels relative to pre-treatment levels in the EE/CA+metformin group (p>0.05). In the post-treatment period, sVCAM, sICAM, sE-selectin values did not significantly change compared to the pre-treatment values in EE/CA group (p>0.05). sP-selectin levels were also decreased but missed the significance in EE/CA group (229.4+/-68.0 vs 189.6+/-65.0, p=0.08). These results demonstrate that EE/CA+metformin treatment reduced inflammation markers in cases with PCOS compared to EE/CA treatment. The clinical relevance of this conclusion may be clarified by longer metformin treatment and clinical follow-up.

  14. 31 CFR 351.42 - What is the issue date of a definitive series EE savings bond?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... series EE savings bond? 351.42 Section 351.42 Money and Finance: Treasury Regulations Relating to Money... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.42 What is the issue date of a definitive series EE savings bond? The issue date of a definitive bond is the first...

  15. 31 CFR 351.50 - How is payment made when definitive Series EE savings bonds are redeemed?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE savings bonds are redeemed? 351.50 Section 351.50 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.50 How is payment made when definitive Series EE savings bonds are redeemed? (a) Payment in general....

  16. 31 CFR 351.60 - How are book-entry Series EE savings bonds purchased and held?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false How are book-entry Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.60 How are book-entry Series EE savings bonds purchased and held? Book-entry bonds must be purchased and held...

  17. 31 CFR 351.47 - May I purchase definitive Series EE savings bonds through a payroll savings plan?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false May I purchase definitive Series EE... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.47 May I purchase definitive Series EE savings bonds through a payroll savings plan?...

  18. 31 CFR 351.7 - May Series EE savings bonds be called for redemption prior to final maturity?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false May Series EE savings bonds be called... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.7 May Series EE savings bonds be called...

  19. 31 CFR 351.42 - What is the issue date of a definitive series EE savings bond?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... definitive series EE savings bond? 351.42 Section 351.42 Money and Finance: Treasury Regulations Relating to... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.42 What is the issue date of a definitive series EE savings bond? The issue date of a definitive bond is the first...

  20. 31 CFR 351.60 - How are book-entry Series EE savings bonds purchased and held?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false How are book-entry Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.60 How are book-entry Series EE savings bonds purchased and held? Book-entry bonds must be purchased and held...

  1. 31 CFR 351.61 - What are the denominations and prices of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... of book-entry Series EE savings bonds? 351.61 Section 351.61 Money and Finance: Treasury Regulations... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.61 What are the denominations and prices of book-entry Series EE savings bonds? Book-entry bonds...

  2. 31 CFR 351.42 - What is the issue date of a definitive Series EE savings bond?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Series EE savings bond? 351.42 Section 351.42 Money and Finance: Treasury Regulations Relating to Money... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.42 What is the issue date of a definitive Series EE savings bond? The issue date of a definitive bond is the first...

  3. 31 CFR 351.61 - What are the denominations and prices of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of book-entry Series EE savings bonds? 351.61 Section 351.61 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.61 What are the denominations and prices of book-entry Series EE savings bonds? Book-entry bonds...

  4. 31 CFR 351.51 - How can I find out what my definitive Series EE savings bonds are worth?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Series EE savings bonds are worth? 351.51 Section 351.51 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.51 How can I find out what my definitive Series EE savings bonds are worth? (a) Redemption values. We...

  5. 31 CFR 351.50 - How is payment made when definitive Series EE savings bonds are redeemed?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Series EE savings bonds are redeemed? 351.50 Section 351.50 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.50 How is payment made when definitive Series EE savings bonds are redeemed? (a) Payment in general....

  6. 31 CFR 351.40 - What were the denominations and prices of definitive Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... prices of definitive Series EE savings bonds? 351.40 Section 351.40 Money and Finance: Treasury... FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.40 What were the denominations and prices of definitive Series EE savings bonds? Prior to...

  7. 31 CFR 351.46 - May I purchase definitive Series EE savings bonds over-the-counter?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false May I purchase definitive Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.46 May I purchase definitive Series EE savings bonds over-the-counter? You may purchase definitive bonds...

  8. 31 CFR 351.63 - How are redemption payments made for my redeemed book-entry Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... my redeemed book-entry Series EE savings bonds? 351.63 Section 351.63 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.63 How are redemption payments made for my redeemed book-entry Series EE savings bonds? We will...

  9. 31 CFR 351.50 - How is payment made when definitive Series EE savings bonds are redeemed?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Series EE savings bonds are redeemed? 351.50 Section 351.50 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.50 How is payment made when definitive Series EE savings bonds are redeemed? (a) Payment in general....

  10. 31 CFR 351.7 - May Series EE savings bonds be called for redemption prior to final maturity?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false May Series EE savings bonds be called... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.7 May Series EE savings bonds be called...

  11. 31 CFR 351.44 - What amount of definitive Series EE savings bonds may I purchase per year?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What amount of definitive Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.44 What amount of definitive Series EE savings bonds may I purchase per year? The principal amount...

  12. 31 CFR 351.46 - May I purchase definitive Series EE savings bonds over-the-counter?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May I purchase definitive Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.46 May I purchase definitive Series EE savings bonds over-the-counter? You may purchase definitive bonds...

  13. 31 CFR 351.40 - What were the denominations and prices of definitive Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... of definitive Series EE savings bonds? 351.40 Section 351.40 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.40 What were the denominations and prices of definitive Series EE savings bonds? Prior to January 1,...

  14. 31 CFR 351.46 - May I purchase definitive Series EE savings bonds over-the-counter?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false May I purchase definitive Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.46 May I purchase definitive Series EE savings bonds over-the-counter? Effective January 1, 2012,...

  15. 31 CFR 351.70 - How are redemption values calculated for book-entry Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... for book-entry Series EE savings bonds? 351.70 Section 351.70 Money and Finance: Treasury Regulations... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.70 How are redemption values calculated for book-entry Series EE savings bonds? We base current...

  16. 31 CFR 351.63 - How are redemption payments made for my redeemed book-entry Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... my redeemed book-entry Series EE savings bonds? 351.63 Section 351.63 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.63 How are redemption payments made for my redeemed book-entry Series EE savings bonds? We will...

  17. 31 CFR 351.60 - How are book-entry Series EE savings bonds purchased and held?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false How are book-entry Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.60 How are book-entry Series EE savings bonds purchased and held? Book-entry bonds must be purchased and held...

  18. 31 CFR 351.50 - How is payment made when definitive Series EE savings bonds are redeemed?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Series EE savings bonds are redeemed? 351.50 Section 351.50 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.50 How is payment made when definitive Series EE savings bonds are redeemed? (a) Payment in general....

  19. 31 CFR 351.65 - What amount of book-entry Series EE savings bonds may I acquire per year?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false What amount of book-entry Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.65 What amount of book-entry Series EE savings bonds may I acquire per year? The principal amount of...

  20. 31 CFR 351.62 - How is payment made for purchases of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... book-entry Series EE savings bonds? 351.62 Section 351.62 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.62 How is payment made for purchases of book-entry Series EE savings bonds? You may only purchase...

  1. 31 CFR 351.46 - May I purchase definitive Series EE savings bonds over-the-counter?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false May I purchase definitive Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.46 May I purchase definitive Series EE savings bonds over-the-counter? Effective January 1, 2012,...

  2. 31 CFR 351.47 - May I purchase definitive Series EE savings bonds through a payroll savings plan?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May I purchase definitive Series EE... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.47 May I purchase definitive Series EE savings bonds through a payroll savings plan? You may...

  3. 31 CFR 351.42 - What is the issue date of a definitive series EE savings bond?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... series EE savings bond? 351.42 Section 351.42 Money and Finance: Treasury Regulations Relating to Money... OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.42 What is the issue date of a definitive series EE savings bond? The issue date of a definitive bond is the first...

  4. 31 CFR 351.70 - How are redemption values calculated for book-entry Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for book-entry Series EE savings bonds? 351.70 Section 351.70 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.70 How are redemption values calculated for book-entry Series EE savings bonds? We base current...

  5. 31 CFR 351.42 - What is the issue date of a definitive Series EE savings bond?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... definitive Series EE savings bond? 351.42 Section 351.42 Money and Finance: Treasury Regulations Relating to... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.42 What is the issue date of a definitive Series EE savings bond? The issue date of a definitive bond is the first...

  6. 31 CFR 351.51 - How can I find out what my definitive Series EE savings bonds are worth?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Series EE savings bonds are worth? 351.51 Section 351.51 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.51 How can I find out what my definitive Series EE savings bonds are worth? (a) Redemption values. We...

  7. 31 CFR 351.40 - What were the denominations and prices of definitive Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of definitive Series EE savings bonds? 351.40 Section 351.40 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.40 What were the denominations and prices of definitive Series EE savings bonds? Prior to January 1,...

  8. 31 CFR 351.40 - What are the denominations and prices of definitive Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of definitive Series EE savings bonds? 351.40 Section 351.40 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.40 What are the denominations and prices of definitive Series EE savings bonds? We issue definitive...

  9. 31 CFR 351.51 - How can I find out what my definitive Series EE savings bonds are worth?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE savings bonds are worth? 351.51 Section 351.51 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.51 How can I find out what my definitive Series EE savings bonds are worth? (a) Redemption values. We...

  10. 31 CFR 351.46 - May I purchase definitive Series EE savings bonds over-the-counter?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false May I purchase definitive Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.46 May I purchase definitive Series EE savings bonds over-the-counter? Effective January 1, 2012,...

  11. 31 CFR 351.50 - How is payment made when definitive Series EE savings bonds are redeemed?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Series EE savings bonds are redeemed? 351.50 Section 351.50 Money and Finance: Treasury Regulations... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.50 How is payment made when definitive Series EE savings bonds are redeemed? (a) Payment in general....

  12. 31 CFR 351.47 - May I purchase definitive Series EE savings bonds through a payroll savings plan?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false May I purchase definitive Series EE... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.47 May I purchase definitive Series EE savings bonds through a payroll savings plan?...

  13. 31 CFR 351.51 - How can I find out what my definitive Series EE savings bonds are worth?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Series EE savings bonds are worth? 351.51 Section 351.51 Money and Finance: Treasury Regulations Relating... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.51 How can I find out what my definitive Series EE savings bonds are worth? (a) Redemption values. We...

  14. 31 CFR 351.48 - May I purchase definitive Series EE savings bonds through employee thrift, savings, vacation, and...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false May I purchase definitive Series EE... OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.48 May I purchase definitive Series EE savings bonds...

  15. 31 CFR 351.48 - May I purchase definitive Series EE savings bonds through employee thrift, savings, vacation, and...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false May I purchase definitive Series EE... OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.48 May I purchase definitive Series EE savings bonds...

  16. 31 CFR 351.63 - How are redemption payments made for my redeemed book-entry Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... my redeemed book-entry Series EE savings bonds? 351.63 Section 351.63 Money and Finance: Treasury... FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.63 How are redemption payments made for my redeemed book-entry Series EE savings bonds? We...

  17. 31 CFR 351.61 - What are the denominations and prices of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... of book-entry Series EE savings bonds? 351.61 Section 351.61 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.61 What are the denominations and prices of book-entry Series EE savings bonds? Book-entry bonds...

  18. 31 CFR 351.65 - What amount of book-entry Series EE savings bonds may I acquire per year?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false What amount of book-entry Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.65 What amount of book-entry Series EE savings bonds may I acquire per year? The principal amount of...

  19. 31 CFR 351.70 - How are redemption values calculated for book-entry Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... for book-entry Series EE savings bonds? 351.70 Section 351.70 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.70 How are redemption values calculated for book-entry Series EE savings bonds? We base current...

  20. 31 CFR 351.40 - What are the denominations and prices of definitive Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... of definitive Series EE savings bonds? 351.40 Section 351.40 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.40 What are the denominations and prices of definitive Series EE savings bonds? We issue definitive...

  1. 31 CFR 351.48 - May I purchase definitive Series EE savings bonds through employee thrift, savings, vacation, and...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May I purchase definitive Series EE... OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.48 May I purchase definitive Series EE savings bonds...

  2. 31 CFR 351.65 - What amount of book-entry Series EE savings bonds may I acquire per year?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false What amount of book-entry Series EE... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.65 What amount of book-entry Series EE savings bonds may I acquire per year? The principal amount of...

  3. 31 CFR 351.48 - May I purchase definitive Series EE savings bonds through employee thrift, savings, vacation, and...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false May I purchase definitive Series EE... OF THE TREASURY BUREAU OF THE FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.48 May I purchase definitive Series EE savings bonds...

  4. 31 CFR 351.47 - May I purchase definitive Series EE savings bonds through a payroll savings plan?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false May I purchase definitive Series EE... FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.47 May I purchase definitive Series EE savings bonds through a payroll savings plan?...

  5. 31 CFR 351.47 - May I purchase definitive Series EE savings bonds through a payroll savings plan?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false May I purchase definitive Series EE... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.47 May I purchase definitive Series EE savings bonds through a payroll savings plan?...

  6. 31 CFR 351.62 - How is payment made for purchases of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... book-entry Series EE savings bonds? 351.62 Section 351.62 Money and Finance: Treasury Regulations... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.62 How is payment made for purchases of book-entry Series EE savings bonds? You may only purchase...

  7. 31 CFR 351.48 - May I purchase definitive Series EE savings bonds through employee thrift, savings, vacation, and...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false May I purchase definitive Series EE... OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.48 May I purchase definitive Series EE savings bonds...

  8. 31 CFR 351.44 - What amount of definitive Series EE savings bonds may I purchase per year?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What amount of definitive Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.44 What amount of definitive Series EE savings bonds may I purchase per year? The principal amount...

  9. 31 CFR 351.62 - How is payment made for purchases of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... book-entry Series EE savings bonds? 351.62 Section 351.62 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.62 How is payment made for purchases of book-entry Series EE savings bonds? You may only purchase...

  10. 31 CFR 351.70 - How are redemption values calculated for book-entry Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... for book-entry Series EE savings bonds? 351.70 Section 351.70 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.70 How are redemption values calculated for book-entry Series EE savings bonds? We base current...

  11. 31 CFR 351.51 - How can I find out what my definitive Series EE savings bonds are worth?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Series EE savings bonds are worth? 351.51 Section 351.51 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.51 How can I find out what my definitive Series EE savings bonds are worth? (a) Redemption values. We...

  12. 31 CFR 351.62 - How is payment made for purchases of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... book-entry Series EE savings bonds? 351.62 Section 351.62 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.62 How is payment made for purchases of book-entry Series EE savings bonds? You may only purchase...

  13. 31 CFR 351.61 - What are the denominations and prices of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of book-entry Series EE savings bonds? 351.61 Section 351.61 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.61 What are the denominations and prices of book-entry Series EE savings bonds? Book-entry bonds...

  14. 31 CFR 351.60 - How are book-entry Series EE savings bonds purchased and held?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false How are book-entry Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.60 How are book-entry Series EE savings bonds purchased and held? Book-entry bonds must be purchased and held...

  15. 31 CFR 351.65 - What amount of book-entry Series EE savings bonds may I acquire per year?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What amount of book-entry Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.65 What amount of book-entry Series EE savings bonds may I acquire per year? The principal amount of...

  16. 31 CFR 351.63 - How are redemption payments made for my redeemed book-entry Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... my redeemed book-entry Series EE savings bonds? 351.63 Section 351.63 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.63 How are redemption payments made for my redeemed book-entry Series EE savings bonds? We will...

  17. 31 CFR 351.66 - What book-entry Series EE savings bonds are included in the computation?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What book-entry Series EE savings... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.66 What book-entry Series EE savings bonds are included in the computation? (a) We include all bonds...

  18. 31 CFR 351.21 - How are redemption values determined during any extended maturity period of Series EE savings...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? 351... BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.21 How are redemption values determined...

  19. 31 CFR 351.63 - How are redemption payments made for my redeemed book-entry Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... my redeemed book-entry Series EE savings bonds? 351.63 Section 351.63 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.63 How are redemption payments made for my redeemed book-entry Series EE savings bonds? We will make...

  20. 31 CFR 351.61 - What are the denominations and prices of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... of book-entry Series EE savings bonds? 351.61 Section 351.61 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.61 What are the denominations and prices of book-entry Series EE savings bonds? Book-entry bonds are...

  1. 31 CFR 351.70 - How are redemption values calculated for book-entry Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for book-entry Series EE savings bonds? 351.70 Section 351.70 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.70 How are redemption values calculated for book-entry Series EE savings bonds? We base current redemption...

  2. 31 CFR 351.66 - What book-entry Series EE savings bonds are included in the computation?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What book-entry Series EE savings... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.66 What book-entry Series EE savings bonds are included in the computation? (a) We include all bonds that...

  3. 31 CFR 351.62 - How is payment made for purchases of book-entry Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... book-entry Series EE savings bonds? 351.62 Section 351.62 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.62 How is payment made for purchases of book-entry Series EE savings bonds? You may only purchase book-entry...

  4. 31 CFR 351.65 - What amount of book-entry Series EE savings bonds may I acquire per year?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What amount of book-entry Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.65 What amount of book-entry Series EE savings bonds may I acquire per year? The principal amount of book...

  5. 31 CFR 351.7 - May Series EE savings bonds be called for redemption prior to final maturity?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May Series EE savings bonds be called... Yields of Series EE Savings Bonds General Provisions § 351.7 May Series EE savings bonds be called for redemption prior to final maturity? The Secretary of the Treasury may not call Series EE bonds for...

  6. Constraints on axions from π0 --> e+e- decay

    NASA Astrophysics Data System (ADS)

    Massó, Eduard

    1986-12-01

    The contribution of axions to π0 --> e+e- decay is considered. It is found that a recently proposed short-lived axion with a mass of 1.8 MeV induces a decay rate inconsistent with experimental observations. More generally, upper limits are placed on the mass of an axion that couples to first-generations fermions. On leave of absence from Department de Física Teòrica, Universitat Autònoma de Barcelona, Bellaterra, Spain.

  7. Two-particle distributions in e+e- jets

    NASA Astrophysics Data System (ADS)

    Willen, Dennis E.

    1980-04-01

    We apply the "jet calculus" of Konishi, Ukawa, and Veneziano (KUV) to the two-particle spectra of e+e- jets. This computation uses single-particle fragmentation functions and the KUV analysis of leading logarithms to predict the multiparticle spectra entirely from the single-particle data. The effects of charm and heavier flavors are discussed and a simple prescription for inverting the necessary double moments is given. The double-differential cross section dσdx1dx2 is displayed for various combinations of mesons and the antiproton.

  8. Procedure for an EE-3 Vent Experiment, Experiment No. 2045

    SciTech Connect

    Dash, Zora V.; Cocks, George G.

    1984-07-23

    During Experiment 2042 approximately 2 million gallons of water were injected in the EE-3 wellbore. This caused seismic activity from the bottom of the well to a region well above the casing shoe (3900 m TVD to 2800 m TVD). Thus water was injected into both the lower high pressure zone and the upper low pressure zone just below the casing shoe. Later experiments have shown that these two zones are connected. In the past the upper zone has often been considered to be a water loss zone (thief zone).

  9. Direct photon production in e+e- annihilation

    NASA Astrophysics Data System (ADS)

    Fernandez, E.; Ford, W. T.; Qi, N.; Read, A. L.; Smith, J. G.; Camporesi, T.; de Sangro, R.; Marini, A.; Peruzzi, I.; Piccolo, M.; Ronga, F.; Blume, H. T.; Hurst, R. B.; Sleeman, J. C.; Venuti, J. P.; Wald, H. B.; Weinstein, Roy; Band, H. R.; Gettner, M. W.; Goderre, G. P.; Meyer, O. A.; Moromisato, J. H.; Shambroom, W. D.; von Goeler, E.; Ash, W. W.; Chadwick, G. B.; Clearwater, S. H.; Coombes, R. W.; Kaye, H. S.; Lau, K. H.; Leedy, R. E.; Lynch, H. L.; Messner, R. L.; Moss, L. J.; Muller, F.; Nelson, H. N.; Ritson, D. M.; Rosenberg, L. J.; Wiser, D. E.; Zdarko, R. W.; Groom, D. E.; Lee, H. Y.; Delfino, M. C.; Heltsley, B. K.; Johnson, J. R.; Lavine, T. L.; Maruyama, T.; Prepost, R.

    1985-01-01

    Direct photon production in hadronic events from e+e- annihilation has been studied at √s =29 GeV with use of the MAC detector at the PEP storage ring. A charge asymmetry A=(-12.3+/-3.5)% is observed in the final-state jets. The cross section and the charge asymmetry are in good agreement with the predictions of the fractionally charged quark-parton model. Both the charge asymmetry and total yield have been used to determine values of quark charges. Limits have been established for anomalous sources of direct photons.

  10. Performance of the ATLAS hadronic endcap calorimeter and the physics of electroweak top quark production at ATLAS

    NASA Astrophysics Data System (ADS)

    O'Neil, Dugan Clive

    2000-06-01

    The Large Hadron Collider (LHC) and the ATLAS experiment are currently under construction with first collisions expected in 2005. The performance of detector components built to the final ATLAS design specifications are evaluated in particle beams. In addition, detailed simulations are performed to estimate the sensitivity of the ATLAS experiment to various physical processes. This thesis is divided into two parts, with contributions to each of these types of performance studies. First, an analysis of the performance of the Hadronic Endcap Calorimeter (HEC) yields a pion energy resolution of s/E=78+/-2%/Eo( GeV) ⊕5.0+/-0.3% and an intrinsic electromagnetic to hadronic response ratio (e/h) of 1.6 +/- 0.1. Second, simulation studies have been performed to estimate the sensitivity of ATLAS to the measurement of Vtb and the polarization of the top quark from electroweak top production. Estimates from three independent channels yield statistical precisions of 0.5%, 2.2% and 2.8% after three years of low luminosity (1033cm-2s-1 ) LHC data-taking. The precision of the top polarization measurement from the highest rate electroweak channel is 1.6% after only 1 year of data- taking.

  11. Acrylate-endcapped polymer precursors: effect of chemical composition on the healing efficiency of active concrete cracks

    NASA Astrophysics Data System (ADS)

    Araújo, Maria; Van Tittelboom, Kim; Dubruel, Peter; Van Vlierberghe, Sandra; De Belie, Nele

    2017-05-01

    The repair of cracks in concrete is an unavoidable practice since these cracks endanger the durability of the structure. Inspired by nature, the self-healing concept has been widely investigated in concrete as a promising solution to solve the limitations of manual repair. This self-healing functionality may be realized by the incorporation of encapsulated healing agents in concrete. Depending on the nature of the cracks, different healing agents can be used. For structures subjected to repeated loads, elastic materials should be considered to cope with the crack opening and closing movement. In this study, various acrylate-endcapped polymer precursors were investigated for their suitability to heal active cracks. The strain capacity of the polymers was assessed by means of visual observation together with water flow tests after widening of the healed cracks in a stepwise manner. A strain of at least 50% could be sustained by epoxy- and siloxane-based healing agents. For polyester- and urethane/poly(propylene glycol)-based precursors, failure occurred at 50% elongation due to detachment of the polymer from the crack walls. However, for urethane/poly(propylene glycol)-based healing agent, debonding was limited to some local spots. The resistance of the polymerized healing agents against degradation in the strong alkaline environment characteristic for concrete has also been evaluated, with the urethane/poly(propylene glycol)-based precursor showing the best performance to withstand degradation.

  12. Creation of coating surfaces possessing superhydrophobic and superoleophobic characteristics with fluoroalkyl end-capped vinyltrimethoxysilane oligomeric nanocomposites having biphenylene segments.

    PubMed

    Goto, Yuki; Takashima, Hiroki; Takishita, Katsuhisa; Sawada, Hideo

    2011-10-15

    Fluoroalkyl end-capped vinyltrimethoxysilane oligomeric nanocomposites having biphenylene units [R(F)-(VM-SiO(2))(n)-R(F)/Ar-SiO(2)] were prepared by the sol-gel reaction of the corresponding oligomer [R(F)-(VM)(n)-R(F)] with 4,4'-bis(triethoxysilyl)-1,1'-biphenyl [Ar-Si(OEt)(3)] under alkaline conditions. R(F)-(VM-SiO(2))(n)-R(F)/Ar-SiO(2) nanocomposites were applied to the surface modification of PMMA to exhibit not only a good oleophobicity imparted by fluorine but also a fluorescent emission ability on the surface. Methanol sol solutions of R(F)-(VM-SiO(2))(n)-R(F)/Ar-SiO(2) nanocomposites were effective for the surface modification of glass through the dipping technique to exhibit good oleophobicity with superhydrophobicity on the modified glass surface. On the other hand, 1,2-dichloroethane sol solutions enabled R(F)-(VM-SiO(2))(n)-R(F)/Ar-SiO(2) nanocomposites to exhibit both superhydrophobic and superoleophobic characteristics on the modified surface through dipping the glass in these sol solutions.

  13. Study of radiation damage to the CMS Hadronic Endcap Calorimeter and investigation into new physics using multi-boson measurements

    SciTech Connect

    Belloni, Alberto

    2016-03-31

    This document is the final report for the U.S. D.O.E. Grant No. DE-SC0014088, which covers the period from May 15, 2015 to March 31, 2016. The funded research covered the study of multi-boson final states, culminated in the measurement of the W±γγ and, for the first time at an hadronic collider, of the Zγγ production cross sections. These processes, among the rarest multi-boson final states measurable by LHC experiments, allow us to investigate the possibility of new physics in a model-independent way, by looking for anomalies in the standard model couplings among electroweak bosons. In particular, these 3-boson final states access quartic gauge couplings; the W±γγ analysis performed as a part of this proposal sets limits on anomalies in the WWγγ quartic gauge coupling. The award also covered R&D activities to define a radiation-tolerant material to be used in the incoming upgrade of the CMS hadronic endcap calorimeter. In particular, the usage of a liquid-scintillator-based detector was investigated. The research work performed in this direction has been collected in a paper recently submitted for publication in the Journal of Instrumentation (JINST).

  14. Synthesis, optical properties and explosive sensing performances of a series of novel π-conjugated aromatic end-capped oligothiophenes.

    PubMed

    Liu, Taihong; Zhao, Keru; Liu, Ke; Ding, Liping; Yin, Shiwei; Fang, Yu

    2013-02-15

    Four novel terthiophene (3T) derivatives, have been synthesized by employing Grignard coupling reaction via end-capping of naphthyl (NA) or pyrenyl (Py) unit to the one or two ends of 3T. It has been shown that both increasing electron donating strength and extending conjugation are effective approaches to improve the photochemical stability of the oligothiophene. Fluorescence studies demonstrated that the emission of the 3T derivatives is sensitive to the presence of some important nitro-containing explosives in their ethanol solution, in particular, 2,4,6-trinitrophenol (PA) and 3,5-dinitro-2,6-bispicrylamino pyridine (PYX). As an example, the detection limits of 4 to PA and PYX were determined to be 6.21 × 10(-7)mol/L and 8.95 × 10(-7)mol/L, respectively. Based on the discovery, a colorimetric detection method has been developed. The sensitive and selective response of the modified 3T to the explosives have been tentatively attributed to the adsorptive affinity of the compounds to the explosives, and to the higher probability of the electron transfer from the electron-rich 3T derivatives to the electron-poor nitro-containing explosives. No doubt, present study broadens the family of fluorophores which may be employed for the development of fluorescent sensors.

  15. Riparian zone influence on stream water chemistry at different spatial scales: a GIS-based modelling approach, an example for the Dee, NE Scotland.

    PubMed

    Smart, R P; Soulsby, C; Cresser, M S; Wade, A J; Townend, J; Billett, M F; Langan, S

    2001-12-03

    A geographical information system (GIS-ARC/INFO) was used to collate existing spatial data sets on catchment characteristics to predict stream water quality using simple empirical models. The study, based on the river Dee catchment in NE Scotland, found that geological maps and associated geochemical information provided a suitable framework for predicting chemical parameters associated with acidification sensitivity (including alkalinity and base cation concentrations). In particular, it was found that in relatively undisturbed catchments, the parent material and geochemistry of the riparian zone, when combined with a simple hydrological flow path model, could be used to accurately predict stream water chemistry at a range of flows (Q95 to > Q5) and spatial scales (1-1000 km2). This probably reflects the importance of the riparian zone as an area where hydrological inputs to stream systems occur via flow paths in the soil and groundwater zones. Thus, evolution of drainage water chemistry appears to retain the geochemical characteristics of the riparian area as it enters the channel network. In more intensively managed catchments, riparian land use is a further influential factor, which can be incorporated into models to improve predictions for certain base cations. The utility in providing simple hydrochemical models, based on readily available data sets, to assist environmental managers in planning land use in catchment systems is discussed.

  16. Signal of doubly charged Higgs at e+e- colliders

    NASA Astrophysics Data System (ADS)

    Hue, L. T.; Huong, D. T.; Long, H. N.; Hung, H. T.; Thao, N. H.

    2015-11-01

    The masses and signals of the production of doubly charged Higgses (DCH) in the framework of the supersymmetric reduced minimal 3-3-1 model are investigated. In the DCH sector, we prove that there always exists a region of the parameter space where the mass of the lightest DCH is of the order of O(100) GeV even when all other new particles are very heavy. The lightest DCH mainly decays to two same-sign leptons while the dominant decay channels of the heavy DCHs are those decaying to heavy particles. We analyze each production cross section for e^+e^- ⇒ H^{++} H^{-} as a function of a few kinematic variables, which are useful to discuss the creation of DCHs in e^+e^- colliders as an indicator of new physics beyond the Standard Model. A numerical study shows that the cross sections for creating the lightest DCH can reach values of a few pb. The other two DCHs are too heavy, beyond the observable range of experiments. The lightest DCH may be detected by the International Linear Collider or the Compact Linear Collider by searching for its decay to a same-sign charged lepton pair.

  17. A Search for Point Sources of EeV Photons

    NASA Astrophysics Data System (ADS)

    Aab, A.; Abreu, P.; Aglietta, M.; Ahlers, M.; Ahn, E. J.; Samarai, I. Al; Albuquerque, I. F. M.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Alvarez Castillo, J.; Alvarez-Muñiz, J.; Alves Batista, R.; Ambrosio, M.; Aminaei, A.; Anchordoqui, L.; Andringa, S.; Aramo, C.; Arqueros, F.; Asorey, H.; Assis, P.; Aublin, J.; Ave, M.; Avenier, M.; Avila, G.; Badescu, A. M.; Barber, K. B.; Bäuml, J.; Baus, C.; Beatty, J. J.; Becker, K. H.; Bellido, J. A.; Berat, C.; Bertou, X.; Biermann, P. L.; Billoir, P.; Blanco, F.; Blanco, M.; Bleve, C.; Blümer, H.; Boháčová, M.; Boncioli, D.; Bonifazi, C.; Bonino, R.; Borodai, N.; Brack, J.; Brancus, I.; Brogueira, P.; Brown, W. C.; Buchholz, P.; Bueno, A.; Buscemi, M.; Caballero-Mora, K. S.; Caccianiga, B.; Caccianiga, L.; Candusso, M.; Caramete, L.; Caruso, R.; Castellina, A.; Cataldi, G.; Cazon, L.; Cester, R.; Chavez, A. G.; Cheng, S. H.; Chiavassa, A.; Chinellato, J. A.; Chudoba, J.; Cilmo, M.; Clay, R. W.; Cocciolo, G.; Colalillo, R.; Collica, L.; Coluccia, M. R.; Conceição, R.; Contreras, F.; Cooper, M. J.; Coutu, S.; Covault, C. E.; Criss, A.; Cronin, J.; Curutiu, A.; Dallier, R.; Daniel, B.; Dasso, S.; Daumiller, K.; Dawson, B. R.; de Almeida, R. M.; De Domenico, M.; de Jong, S. J.; de Mello Neto, J. R. T.; De Mitri, I.; de Oliveira, J.; de Souza, V.; del Peral, L.; Deligny, O.; Dembinski, H.; Dhital, N.; Di Giulio, C.; Di Matteo, A.; Diaz, J. C.; Díaz Castro, M. L.; Diep, P. N.; Diogo, F.; Dobrigkeit, C.; Docters, W.; D'Olivo, J. C.; Dong, P. N.; Dorofeev, A.; Dorosti Hasankiadeh, Q.; Dova, M. T.; Ebr, J.; Engel, R.; Erdmann, M.; Erfani, M.; Escobar, C. O.; Espadanal, J.; Etchegoyen, A.; Facal San Luis, P.; Falcke, H.; Fang, K.; Farrar, G.; Fauth, A. C.; Fazzini, N.; Ferguson, A. P.; Fernandes, M.; Fick, B.; Figueira, J. M.; Filevich, A.; Filipčič, A.; Fox, B. D.; Fratu, O.; Fröhlich, U.; Fuchs, B.; Fuji, T.; Gaior, R.; García, B.; Garcia Roca, S. T.; Garcia-Gamez, D.; Garcia-Pinto, D.; Garilli, G.; Gascon Bravo, A.; Gate, F.; Gemmeke, H.; Ghia, P. L.; Giaccari, U.; Giammarchi, M.; Giller, M.; Glaser, C.; Glass, H.; Gomez Albarracin, F.; Gómez Berisso, M.; Gómez Vitale, P. F.; Gonçalves, P.; Gonzalez, J. G.; Gookin, B.; Gorgi, A.; Gorham, P.; Gouffon, P.; Grebe, S.; Griffith, N.; Grillo, A. F.; Grubb, T. D.; Guardincerri, Y.; Guarino, F.; Guedes, G. P.; Hansen, P.; Harari, D.; Harrison, T. A.; Harton, J. L.; Haungs, A.; Hebbeker, T.; Heck, D.; Heimann, P.; Herve, A. E.; Hill, G. C.; Hojvat, C.; Hollon, N.; Holt, E.; Homola, P.; Hörandel, J. R.; Horvath, P.; Hrabovský, M.; Huber, D.; Huege, T.; Insolia, A.; Isar, P. G.; Islo, K.; Jandt, I.; Jansen, S.; Jarne, C.; Josebachuili, M.; Kääpä, A.; Kambeitz, O.; Kampert, K. H.; Kasper, P.; Katkov, I.; Kégl, B.; Keilhauer, B.; Keivani, A.; Kemp, E.; Kieckhafer, R. M.; Klages, H. O.; Kleifges, M.; Kleinfeller, J.; Krause, R.; Krohm, N.; Krömer, O.; Kruppke-Hansen, D.; Kuempel, D.; Kunka, N.; La Rosa, G.; LaHurd, D.; Latronico, L.; Lauer, R.; Lauscher, M.; Lautridou, P.; Le Coz, S.; Leão, M. S. A. B.; Lebrun, D.; Lebrun, P.; Leigui de Oliveira, M. A.; Letessier-Selvon, A.; Lhenry-Yvon, I.; Link, K.; López, R.; Lopez Agüera, A.; Louedec, K.; Lozano Bahilo, J.; Lu, L.; Lucero, A.; Ludwig, M.; Lyberis, H.; Maccarone, M. C.; Malacari, M.; Maldera, S.; Maller, J.; Mandat, D.; Mantsch, P.; Mariazzi, A. G.; Marin, V.; Mariş, I. C.; Marsella, G.; Martello, D.; Martin, L.; Martinez, H.; Martínez Bravo, O.; Martraire, D.; Masías Meza, J. J.; Mathes, H. J.; Mathys, S.; Matthews, A. J.; Matthews, J.; Matthiae, G.; Maurel, D.; Maurizio, D.; Mayotte, E.; Mazur, P. O.; Medina, C.; Medina-Tanco, G.; Melissas, M.; Melo, D.; Menichetti, E.; Menshikov, A.; Messina, S.; Meyhandan, R.; Mićanović, S.; Micheletti, M. I.; Middendorf, L.; Minaya, I. A.; Miramonti, L.; Mitrica, B.; Molina-Bueno, L.; Mollerach, S.; Monasor, M.; Monnier Ragaigne, D.; Montanet, F.; Morello, C.; Moreno, J. C.; Mostafá, M.; Moura, C. A.; Muller, M. A.; Müller, G.; Münchmeyer, M.; Mussa, R.; Navarra, G.; Navas, S.; Necesal, P.; Nellen, L.; Nelles, A.; Neuser, J.; Niechciol, M.; Niemietz, L.; Niggemann, T.; Nitz, D.; Nosek, D.; Novotny, V.; Nožka, L.; Ochilo, L.; Olinto, A.; Oliveira, M.; Ortiz, M.; Pacheco, N.; Pakk Selmi-Dei, D.; Palatka, M.; Pallotta, J.; Palmieri, N.; Papenbreer, P.; Parente, G.; Parra, A.; Pastor, S.; Paul, T.; Pech, M.; Peķala, J.; Pelayo, R.; Pepe, I. M.; Perrone, L.; Pesce, R.; Petermann, E.; Peters, C.; Petrera, S.; Petrolini, A.; Petrov, Y.; Piegaia, R.; Pierog, T.; Pieroni, P.; Pimenta, M.; Pirronello, V.; Platino, M.; Plum, M.; Porcelli, A.; Porowski, C.; Privitera, P.; Prouza, M.; Purrello, V.; Quel, E. J.; Querchfeld, S.; Quinn, S.; Rautenberg, J.; Ravel, O.; Ravignani, D.; Revenu, B.; Ridky, J.; Riggi, S.; Risse, M.; Ristori, P.; Rizi, V.; Roberts, J.; Rodrigues de Carvalho, W.; Rodriguez Cabo, I.; Rodriguez Fernandez, G.; Rodriguez Rojo, J.; Rodríguez-Frías, M. D.; Ros, G.; Rosado, J.; Rossler, T.; Roth, M.; Roulet, E.; Rovero, A. C.; Rühle, C.; Saffi, S. J.; Saftoiu, A.; Salamida, F.; Salazar, H.; Salesa Greus, F.; Salina, G.; Sánchez, F.; Sanchez-Lucas, P.; Santo, C. E.; Santos, E.; Santos, E. M.; Sarazin, F.; Sarkar, B.; Sarmento, R.; Sato, R.; Scharf, N.; Scherini, V.; Schieler, H.; Schiffer, P.; Schmidt, A.; Scholten, O.; Schoorlemmer, H.; Schovánek, P.; Schulz, A.; Schulz, J.; Sciutto, S. J.; Segreto, A.; Settimo, M.; Shadkam, A.; Shellard, R. C.; Sidelnik, I.; Sigl, G.; Sima, O.; Śmiałkowski, A.; Šmída, R.; Snow, G. R.; Sommers, P.; Sorokin, J.; Squartini, R.; Srivastava, Y. N.; Stanič, S.; Stapleton, J.; Stasielak, J.; Stephan, M.; Stutz, A.; Suarez, F.; Suomijärvi, T.; Supanitsky, A. D.; Sutherland, M. S.; Swain, J.; Szadkowski, Z.; Szuba, M.; Taborda, O. A.; Tapia, A.; Tartare, M.; Thao, N. T.; Theodoro, V. M.; Tiffenberg, J.; Timmermans, C.; Todero Peixoto, C. J.; Toma, G.; Tomankova, L.; Tomé, B.; Tonachini, A.; Torralba Elipe, G.; Torres Machado, D.; Travnicek, P.; Trovato, E.; Tueros, M.; Ulrich, R.; Unger, M.; Urban, M.; Valdés Galicia, J. F.; Valiño, I.; Valore, L.; van Aar, G.; van den Berg, A. M.; van Velzen, S.; van Vliet, A.; Varela, E.; Vargas Cárdenas, B.; Varner, G.; Vázquez, J. R.; Vázquez, R. A.; Veberič, D.; Verzi, V.; Vicha, J.; Videla, M.; Villaseñor, L.; Vlcek, B.; Vorobiov, S.; Wahlberg, H.; Wainberg, O.; Walz, D.; Watson, A. A.; Weber, M.; Weidenhaupt, K.; Weindl, A.; Werner, F.; Whelan, B. J.; Widom, A.; Wiencke, L.; Wilczyńska, B.; Wilczyński, H.; Will, M.; Williams, C.; Winchen, T.; Wittkowski, D.; Wundheiler, B.; Wykes, S.; Yamamoto, T.; Yapici, T.; Younk, P.; Yuan, G.; Yushkov, A.; Zamorano, B.; Zas, E.; Zavrtanik, D.; Zavrtanik, M.; Zaw, I.; Zepeda, A.; Zhou, J.; Zhu, Y.; Zimbres Silva, M.; Ziolkowski, M.; Auger Collaboration102, The Pierre

    2014-07-01

    Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from -85° to +20°, in an energy range from 1017.3 eV to 1018.5 eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of -2, is 0.06 eV cm-2 s-1, and no celestial direction exceeds 0.25 eV cm-2 s-1. These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy.

  18. A search for point sources of EeV photons

    SciTech Connect

    Aab, A.; Abreu, P.; Andringa, S.; Aglietta, M.; Ahlers, M.; Ahn, E. J.; Al Samarai, I.; Albuquerque, I. F. M.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Castillo, J. Alvarez; Alvarez-Muñiz, J.; Batista, R. Alves; Ambrosio, M.; Aramo, C.; Aminaei, A.; Anchordoqui, L.; Arqueros, F.; Collaboration: Pierre Auger Collaboration102; and others

    2014-07-10

    Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from –85° to +20°, in an energy range from 10{sup 17.3} eV to 10{sup 18.5} eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of –2, is 0.06 eV cm{sup –2} s{sup –1}, and no celestial direction exceeds 0.25 eV cm{sup –2} s{sup –1}. These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy.

  19. Improved synthesis of mestranol and ethinyl estradiol (EE) related degradation products as authentic references.

    PubMed

    Li, Hongqi; Song, Yanxi; Peng, Xianfu

    2008-05-01

    Preparative chemical methods for the synthesis of 10 degradation or photodecomposition products of mestranol and ethinyl estradiol (EE) are described. The synthesized compounds are useful as reference materials and standards for pharmaceutical analysis of mestranol and EE as bulk chemical or in formulated product. New synthetic methods were presented and the known synthetic procedures were improved. Detailed structural characterization of the degradation or photodecomposition products of mestranol and EE and related compounds was reported.

  20. Double Higgs Boson Production via WW Fusion in TeV e+e- Collisions

    NASA Astrophysics Data System (ADS)

    Barger, V.; Han, T.

    The production of two standard model Higgs bosons via the WW fusion process e+e- → bar ve ve HH would test the predicted HHH, HWW and HHWW couplings. At TeV energies this fusion cross section dominates over that from e+e- →ZHH and would give significant event rates for mH ≲ 1/2 MZ at high luminosity e+e- colliders. We evaluate the rates and present the dynamical distributions.

  1. Validation of the Emotional Eating Scale Adapted for Use in Children and Adolescents (EES-C)

    PubMed Central

    Tanofsky-Kraff, Marian; Theim, Kelly R.; Yanovski, Susan Z.; Bassett, Allison M.; Burns, Noel P.; Ranzenhofer, Lisa M.; Glasofer, Deborah R.; Yanovski, Jack A.

    2007-01-01

    Objective Eating in response to negative emotions is associated with binge or loss of control (LOC) eating in adults. Although children report engaging in LOC eating, data on emotional eating among youth are limited. Method We adapted the adult Emotional Eating Scale (Arnow et al., Int J Eat Disord, 18, 79–90, 1995) to be used with children and adolescents (EES-C). Fifty-nine overweight (BMI ≥ 95th percentile for age and sex) and 100 non-overweight (BMI 5th–94th percentile) participants (mean age ± SD 14.3 ± 2.4 years) completed the EES-C, and measures of recent LOC eating and general psychopathology. Test-retest reliability was assessed in 64 children over a 3.4 ± 2.6 month interval. Results A factor analysis generated three subscales: eating in response to anxiety, anger, and frustration (EES-C-AAF), depressive symptoms (EES-C-DEP), and feeling unsettled (EES-C-UNS). Internal consistency for the subscales was established; Cronbach’s alphas for the EES-C-AAF, EES-C-DEP, and EES-C-UNS were 0.95, 0.92, and 0.83, respectively. The EES-C had good convergent validity: children reporting recent LOC eating episodes scored higher on all subscales (p’s < 0.05). The EES-C-AAF and EES-CUNS subscales demonstrated good discriminant validity and the EES-C-DEP revealed adequate discriminant validity. Intra-class correlation coefficients revealed good temporal stability for each subscale (EES-C-AAF = 0.59, EES-C-DEP = 0.74, EES-C-UNS = 0.66; p’s < 0.001). Conclusion The EES-C has good convergent and discriminant validity, and test-retest reliability for assessing emotional eating in children. Further investigation is required to clarify the role emotional eating may play in children’s energy intake and body weight. PMID:17262813

  2. Well completion and operations for MHF of Fenton Hill HDR Well EE-2

    SciTech Connect

    Dreesen, D.S.; Nicholson, R.W.

    1985-01-01

    Previous attempts to connect Fenton Hill Hot Dry Rock Geothermal Site Wells EE-2 and EE-3 by pumping 150 thousand to 1.3 million gallons of water had not achieved a detectable hydraulic fracture connection. Therefore, preparations were made to conduct, in December 1983, a 4 to 6 million gallon, 50 BPM water injection in EE-2. The objective was to enlarge the previously created reservoir in EE-2 using massive hydraulic facturing (MHF). The planning, preparations, operations and results of the MHF are presented here. 4 refs., 7 figs.

  3. Experiment 2059: Second Packer Stimulation of EE-3A

    SciTech Connect

    Brown, Donald W.

    1985-05-09

    By late Thursday, 5-9-85, EE-3A should be at a depth of about 12,200 feet. We plan to stop drilling at this point and pressurize the bottom 600 to 700 feet of the open hole using a Lynes packer. The Lynes packer would be set somewhere in the interval of very competent, slow-drilling, and only slightly altered biotite granodiorite from 11,460 ft to 11,590 ft. This would place the packer below the two fractures (at 10,880 ft and 11,000 ft) stimulated during Expt. 2057, and also below the producing fracture at 11,440 ft as reported on 5-2-85.

  4. The three-jet rate in e+e- annihilation

    NASA Astrophysics Data System (ADS)

    Lovett-Turner, C. N.

    1994-06-01

    Progress has been made on the calculation of R3, the three-jet rate in e+e- annihilation, in the k⊥ (Durham) scheme. Using the coherent branching formalism [A.H. Mueller, Phys. Lett. B 104 (1981) 161; B.I. Ermolaev and V.S. Fadin, JETP Lett. 33 (1981) 285; Yu.L. Dokshitzer, V.S. Fadin and V.A. Khoze, Z. Phys. C 15 (1982) 325; C 18 (1983) 37; A. Bassetto, M. Ciafaloni and G. Marchesini, Phys. Rep. 100 (1983) 202; Yu.L. Dokshitzer and S. Troyan, Leningrad Report LNPI-922 (1984); Yu.L. Dokshitzer, V.A. Khoze and S. Troyan, in: Perturbative QCD, ed. A.H. Mueller (World Scientific, Singapore, 1989)], an explicit expression for R3 is calculated. In this, leading and next-to-leading large logarithms (LL and NLL) are resummed to all orders in QCD perturbation theory. In addition to exponentials an error function is involved.

  5. Collins Effect from Polarized SIDIS and e+e- Data

    SciTech Connect

    Prokudin, A.; Tuerk, C.

    2007-06-13

    The recent data on the transverse single spin asymmetry A{sub UT}{sup sin({phi}{sub h}+{phi}{sub S})} from HERMES and COMPASS Collaborations are analysed within LO parton model with unintegrated parton distribution and fragmentation functions. A fit of SIDIS data from HERMES Collaboration is performed leading to the extraction of favoured and unfavoured Collins fragmentation functions. A very good description of COMPASS data is obtained. BELLE e+e- data are shown to be compatible with our estimates based on the extracted Collins fragmentation functions. Predictions for A{sub UT}{sup sin({phi}{sub h}+{phi}{sub S})} asymmetries at JLab and COMPASS operating on a proton target are given.

  6. A Search for Point Sources of EeV Neutrons

    NASA Astrophysics Data System (ADS)

    Pierre Auger Collaboration; Abreu, P.; Aglietta, M.; Ahlers, M.; Ahn, E. J.; Albuquerque, I. F. M.; Allard, D.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Alvarez Castillo, J.; Alvarez-Muñiz, J.; Alves Batista, R.; Ambrosio, M.; Aminaei, A.; Anchordoqui, L.; Andringa, S.; Antiči'c, T.; Aramo, C.; Arganda, E.; Arqueros, F.; Asorey, H.; Assis, P.; Aublin, J.; Ave, M.; Avenier, M.; Avila, G.; Badescu, A. M.; Balzer, M.; Barber, K. B.; Barbosa, A. F.; Bardenet, R.; Barroso, S. L. C.; Baughman, B.; Bäuml, J.; Baus, C.; Beatty, J. J.; Becker, K. H.; Bellétoile, A.; Bellido, J. A.; BenZvi, S.; Berat, C.; Bertou, X.; Biermann, P. L.; Billoir, P.; Blanco, F.; Blanco, M.; Bleve, C.; Blümer, H.; Boháčová, M.; Boncioli, D.; Bonifazi, C.; Bonino, R.; Borodai, N.; Brack, J.; Brancus, I.; Brogueira, P.; Brown, W. C.; Bruijn, R.; Buchholz, P.; Bueno, A.; Buroker, L.; Burton, R. E.; Caballero-Mora, K. S.; Caccianiga, B.; Caramete, L.; Caruso, R.; Castellina, A.; Catalano, O.; Cataldi, G.; Cazon, L.; Cester, R.; Chauvin, J.; Cheng, S. H.; Chiavassa, A.; Chinellato, J. A.; Chirinos Diaz, J.; Chudoba, J.; Cilmo, M.; Clay, R. W.; Cocciolo, G.; Collica, L.; Coluccia, M. R.; Conceição, R.; Contreras, F.; Cook, H.; Cooper, M. J.; Coppens, J.; Cordier, A.; Coutu, S.; Covault, C. E.; Creusot, A.; Criss, A.; Cronin, J.; Curutiu, A.; Dagoret-Campagne, S.; Dallier, R.; Daniel, B.; Dasso, S.; Daumiller, K.; Dawson, B. R.; de Almeida, R. M.; De Domenico, M.; De Donato, C.; de Jong, S. J.; De La Vega, G.; de Mello Junior, W. J. M.; de Mello Neto, J. R. T.; De Mitri, I.; de Souza, V.; de Vries, K. D.; del Peral, L.; del Río, M.; Deligny, O.; Dembinski, H.; Dhital, N.; Di Giulio, C.; Díaz Castro, M. L.; Diep, P. N.; Diogo, F.; Dobrigkeit, C.; Docters, W.; D'Olivo, J. C.; Dong, P. N.; Dorofeev, A.; dos Anjos, J. C.; Dova, M. T.; D'Urso, D.; Dutan, I.; Ebr, J.; Engel, R.; Erdmann, M.; Escobar, C. O.; Espadanal, J.; Etchegoyen, A.; Facal San Luis, P.; Falcke, H.; Farrar, G.; Fauth, A. C.; Fazzini, N.; Ferguson, A. P.; Fick, B.; Figueira, J. M.; Filevich, A.; Filipčič, A.; Fliescher, S.; Fracchiolla, C. E.; Fraenkel, E. D.; Fratu, O.; Fröhlich, U.; Fuchs, B.; Gaior, R.; Gamarra, R. F.; Gambetta, S.; García, B.; Garcia Roca, S. T.; Garcia-Gamez, D.; Garcia-Pinto, D.; Gascon Bravo, A.; Gemmeke, H.; Ghia, P. L.; Giller, M.; Gitto, J.; Glass, H.; Gold, M. S.; Golup, G.; Gomez Albarracin, F.; Gómez Berisso, M.; Gómez Vitale, P. F.; Gonçalves, P.; Gonzalez, J. G.; Gookin, B.; Gorgi, A.; Gouffon, P.; Grashorn, E.; Grebe, S.; Griffith, N.; Grigat, M.; Grillo, A. F.; Guardincerri, Y.; Guarino, F.; Guedes, G. P.; Hansen, P.; Harari, D.; Harrison, T. A.; Harton, J. L.; Haungs, A.; Hebbeker, T.; Heck, D.; Herve, A. E.; Hojvat, C.; Hollon, N.; Holmes, V. C.; Homola, P.; Hörandel, J. R.; Horvath, P.; Hrabovský, M.; Huber, D.; Huege, T.; Insolia, A.; Ionita, F.; Italiano, A.; Jansen, S.; Jarne, C.; Jiraskova, S.; Josebachuili, M.; Kadija, K.; Kampert, K. H.; Karhan, P.; Kasper, P.; Katkov, I.; Kégl, B.; Keilhauer, B.; Keivani, A.; Kelley, J. L.; Kemp, E.; Kieckhafer, R. M.; Klages, H. O.; Kleifges, M.; Kleinfeller, J.; Knapp, J.; Koang, D.-H.; Kotera, K.; Krohm, N.; Krömer, O.; Kruppke-Hansen, D.; Kuempel, D.; Kulbartz, J. K.; Kunka, N.; La Rosa, G.; Lachaud, C.; LaHurd, D.; Latronico, L.; Lauer, R.; Lautridou, P.; Le Coz, S.; Leão, M. S. A. B.; Lebrun, D.; Lebrun, P.; Leigui de Oliveira, M. A.; Letessier-Selvon, A.; Lhenry-Yvon, I.; Link, K.; López, R.; Lopez Agüera, A.; Louedec, K.; Lozano Bahilo, J.; Lu, L.; Lucero, A.; Ludwig, M.; Lyberis, H.; Maccarone, M. C.; Macolino, C.; Maldera, S.; Maller, J.; Mandat, D.; Mantsch, P.; Mariazzi, A. G.; Marin, J.; Marin, V.; Maris, I. C.; Marquez Falcon, H. R.; Marsella, G.; Martello, D.; Martin, L.; Martinez, H.; Martínez Bravo, O.; Martraire, D.; Masías Meza, J. J.; Mathes, H. J.; Matthews, J.; Matthews, J. A. J.; Matthiae, G.; Maurel, D.; Maurizio, D.; Mazur, P. O.; Medina-Tanco, G.; Melissas, M.; Melo, D.; Menichetti, E.; Menshikov, A.; Mertsch, P.; Meurer, C.; Meyhandan, R.; Mi'canovi'c, S.; Micheletti, M. I.; Minaya, I. A.; Miramonti, L.; Molina-Bueno, L.; Mollerach, S.; Monasor, M.; Monnier Ragaigne, D.; Montanet, F.; Morales, B.; Morello, C.; Moreno, E.; Moreno, J. C.; Mostafá, M.; Moura, C. A.; Muller, M. A.; Müller, G.; Münchmeyer, M.; Mussa, R.; Navarra, G.; Navarro, J. L.; Navas, S.; Necesal, P.; Nellen, L.; Nelles, A.; Neuser, J.; Nhung, P. T.; Niechciol, M.; Niemietz, L.; Nierstenhoefer, N.; Nitz, D.; Nosek, D.; Nožka, L.; Oehlschläger, J.; Olinto, A.; Ortiz, M.; Pacheco, N.; Pakk Selmi-Dei, D.; Palatka, M.; Pallotta, J.; Palmieri, N.; Parente, G.; Parizot, E.; Parra, A.; Pastor, S.; Paul, T.; Pech, M.; Peķala, J.; Pelayo, R.; Pepe, I. M.; Perrone, L.; Pesce, R.; Petermann, E.; Petrera, S.; Petrolini, A.; Petrov, Y.; Pfendner, C.; Piegaia, R.; Pierog, T.; Pieroni, P.; Pimenta, M.; Pirronello, V.; Platino, M.; Plum, M.; Ponce, V. H.; Pontz, M.; Porcelli, A.; Privitera, P.; Prouza, M.; Quel, E. J.; Querchfeld, S.; Rautenberg, J.; Ravel, O.; Ravignani, D.; Revenu, B.; Ridky, J.; Riggi, S.; Risse, M.; Ristori, P.; Rivera, H.; Rizi, V.; Roberts, J.; Rodrigues de Carvalho, W.; Rodriguez, G.; Rodriguez Cabo, I.; Rodriguez Martino, J.; Rodriguez Rojo, J.; Rodríguez-Frías, M. D.; Ros, G.; Rosado, J.; Rossler, T.; Roth, M.; Rouillé-d'Orfeuil, B.; Roulet, E.; Rovero, A. C.; Rühle, C.; Saftoiu, A.; Salamida, F.; Salazar, H.; Salesa Greus, F.; Salina, G.; Sánchez, F.; Santo, C. E.; Santos, E.; Santos, E. M.; Sarazin, F.; Sarkar, B.; Sarkar, S.; Sato, R.; Scharf, N.; Scherini, V.; Schieler, H.; Schiffer, P.; Schmidt, A.; Scholten, O.; Schoorlemmer, H.; Schovancova, J.; Schovánek, P.; Schröder, F.; Schulte, S.; Schuster, D.; Sciutto, S. J.; Scuderi, M.; Segreto, A.; Settimo, M.; Shadkam, A.; Shellard, R. C.; Sidelnik, I.; Sigl, G.; Silva Lopez, H. H.; Sima, O.; 'Smiałkowski, A.; Šmída, R.; Snow, G. R.; Sommers, P.; Sorokin, J.; Spinka, H.; Squartini, R.; Srivastava, Y. N.; Stanic, S.; Stapleton, J.; Stasielak, J.; Stephan, M.; Stutz, A.; Suarez, F.; Suomijärvi, T.; Supanitsky, A. D.; Šuša, T.; Sutherland, M. S.; Swain, J.; Szadkowski, Z.; Szuba, M.; Tapia, A.; Tartare, M.; Taşcău, O.; Tcaciuc, R.; Thao, N. T.; Thomas, D.; Tiffenberg, J.; Timmermans, C.; Tkaczyk, W.; Todero Peixoto, C. J.; Toma, G.; Tomankova, L.; Tomé, B.; Tonachini, A.; Travnicek, P.; Tridapalli, D. B.; Tristram, G.; Trovato, E.; Tueros, M.; Ulrich, R.; Unger, M.; Urban, M.; Valdés Galicia, J. F.; Valiño, I.; Valore, L.; van Aar, G.; van den Berg, A. M.; van Vliet, A.; Varela, E.; Vargas Cárdenas, B.; Vázquez, J. R.; Vázquez, R. A.; Veberič, D.; Verzi, V.; Vicha, J.; Videla, M.; Villaseñor, L.; Wahlberg, H.; Wahrlich, P.; Wainberg, O.; Walz, D.; Watson, A. A.; Weber, M.; Weidenhaupt, K.; Weindl, A.; Werner, F.; Westerhoff, S.; Whelan, B. J.; Widom, A.; Wieczorek, G.; Wiencke, L.; Wilczyńska, B.; Wilczyński, H.; Will, M.; Williams, C.; Winchen, T.; Wommer, M.; Wundheiler, B.; Yamamoto, T.; Yapici, T.; Younk, P.; Yuan, G.; Yushkov, A.; Zamorano Garcia, B.; Zas, E.; Zavrtanik, D.; Zavrtanik, M.; Zaw, I.; Zepeda, A.; Zhou, J.; Zhu, Y.; Zimbres Silva, M.; Ziolkowski, M.

    2012-12-01

    A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from -90° to +15° in declination using four different energy ranges above 1 EeV (1018 eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy.

  7. A SEARCH FOR POINT SOURCES OF EeV NEUTRONS

    SciTech Connect

    Abreu, P.; Andringa, S.; Aglietta, M.; Ahlers, M.; Ahn, E. J.; Albuquerque, I. F. M.; Allard, D.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Alvarez Castillo, J.; Alvarez-Muniz, J.; Alves Batista, R.; Ambrosio, M.; Aramo, C.; Aminaei, A.; Anchordoqui, L.; Antici'c, T.; Arganda, E.; Collaboration: Pierre Auger Collaboration; and others

    2012-12-01

    A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from -90 Degree-Sign to +15 Degree-Sign in declination using four different energy ranges above 1 EeV (10{sup 18} eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy.

  8. Control of grain protein contents through SEMIDWARF1 mutant alleles: sd1 increases the grain protein content in Dee-geo-woo-gen but not in Reimei.

    PubMed

    Terao, Tomio; Hirose, Tatsuro

    2015-06-01

    A new possibility for genetic control of the protein content of rice grains was suggested by the allele differences of the SEMIDWARF1 (SD1) mutation. Two quantitative trait loci-qPROT1 and qPROT12-were found on chromosomes 1 and 12, respectively, using backcrossed inbred lines of Sasanishiki/Habataki//Sasanishiki///Sasanishiki. One of them, qPROT1, increased almost all grain proteins instead of only certain proteins in the recessive Habataki allele. Fine mapping of qPROT1 revealed that two gene candidates-Os01g0883800 and Os01g0883900-were included in this region. Os01g0883800 encoded Gibberellin 20 oxidase 2 as well as SD1, the dwarf gene used in the so-called 'Green Revolution'. Mutant analyses as well as sequencing analysis using the semi-dwarf mutant cultivars Dee-geo-woo-gen and Calrose 76 revealed that the sd1 mutant showed significantly higher grain protein contents than their corresponding wild-type cultivars, strongly suggesting that the high protein contents were caused by sd1 mutation. However, the sd1 mutant Reimei did not have high grain protein contents. It is possible to control the grain protein content and column length separately by selecting for sd1 alleles. From this finding, the genetic control of grain protein content, as well as the column length of rice cultivars, might be possible. This ability might be useful to improve rice nutrition, particularly in areas where the introduction of semi-dwarf cultivars is not advanced.

  9. Preliminary design of FCC-ee pre-injector complex

    NASA Astrophysics Data System (ADS)

    Ogur, S.; Barnyakov, A.; Furukawa, K.; Iida, N.; Levichev, A.; Miyahara, F.; Nikiforov, D.; Oide, K.; Papaphilippou, Y.; Zimmermann, F.

    2017-07-01

    The design of a 100 km circular e + e - collider with extremely high luminosity is an important component of the global Future Circular Collider (FCC) study hosted by CERN. FCC-ee is being designed to serve as Z, W, H and top factory, covering beam energies from 45.6 to 175 GeV. For the injectors, the Z-operation is the most challenging mode, due to the high total charge and low equilibrium emittance in the collider at this energy. Thus, fulfilling the Z-mode will also meet the demands for all other modes of FCC-ee. This goal can be achieved by using a 6 GeV NC linac with an S-band RF frequency of 2.856 GHz and a repetition rate of 100 Hz. This linac will accelerate two bunches per RF pulse, each with a charge of 6.5 nC. Positrons will be generated by sending 4.46 GeV e - onto a hybrid target so that the e + created can still be accelerated to 1.54 GeV in the remaining part of the same linac. The emittance of the e + beam will then shrink to the nm level in a 1.54 GeV damping ring. After damping, the e + will be reinjected into the linac and accelerated to 6 GeV. The e - and e + will then be accelerated alternately to 45.6 GeV in the booster, before they are injected into the collider.

  10. EE-drospirenone-levomefolate calcium versus EE-drospirenone + folic acid: folate status during 24 weeks of treatment and over 20 weeks following treatment cessation.

    PubMed

    Diefenbach, Konstanze; Trummer, Dietmar; Ebert, Frank; Lissy, Michael; Koch, Manuela; Rohde, Beate; Blode, Hartmut

    2013-01-01

    Adequate folate supplementation in the periconceptional phase is recommended to reduce the risk of neural tube defects. Oral contraceptives may provide a reasonable delivery vehicle for folate supplementation before conception in women of childbearing potential. This study aimed to demonstrate that a fixed-dose combination of an oral contraceptive and levomefolate calcium leads to sustainable improvements in folate status compared with an oral contraceptive + folic acid. This was a double-blind, randomized, parallel-group study in which 172 healthy women aged 18-40 years received ethinylestradiol (EE)-drospirenone-levomefolate calcium or EE-drospirenone + folic acid for 24 weeks (invasion phase), and EE-drospirenone for an additional 20 weeks (folate elimination phase). The main objective of the invasion phase was to examine the area under the folate concentration time-curve for plasma and red blood cell (RBC) folate, while the main objective of the elimination phase was to determine the duration of time for which RBC folate concentration remained ≥ 906 nmol/L after cessation of EE-drospirenone-levomefolate calcium. Mean concentration-time curves for plasma folate, RBC folate, and homocysteine were comparable between treatment groups during both study phases. During the invasion phase, plasma and RBC folate concentrations increased and approached steady-state after about 8 weeks (plasma) or 24 weeks (RBC). After cessation of treatment with levomefolate calcium, folate concentrations decreased slowly. The median time to RBC folate concentrations falling below 906 nmol/L was 10 weeks (95% confidence interval 8-12 weeks) after cessation of EE-drospirenone-levomefolate calcium treatment. Plasma and RBC folate levels remained above baseline values in 41.3% and 89.3% of women, respectively, at the end of the 20-week elimination phase. Improvements in folate status were comparable between EE-drospirenone-levomefolate calcium and EE-drospirenone + folic acid. Plasma and

  11. Improvements to an Electrical Engineering Skill Audit Exam to Improve Student Mastery of Core EE Concepts

    ERIC Educational Resources Information Center

    Parent, D. W.

    2011-01-01

    The San Jose State University Electrical Engineering (EE) Department implemented a skill audit exam for graduating seniors in 1999 with the purpose of assessing the teaching and the students' mastery of core concepts in EE. However, consistent low scores for the first years in which the test was administered suggested that students had little…

  12. 76 FR 66855 - United States Savings Bonds, Series EE, HH and I

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-28

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF THE TREASURY Fiscal Service 31 CFR Parts 351, 353, 359, and 360 United States Savings Bonds, Series EE, HH and I... DEFINITIVE UNITED STATES SAVINGS BONDS, SERIES EE AND HH 0 9. The authority citation for part 353...

  13. Improvements to an Electrical Engineering Skill Audit Exam to Improve Student Mastery of Core EE Concepts

    ERIC Educational Resources Information Center

    Parent, D. W.

    2011-01-01

    The San Jose State University Electrical Engineering (EE) Department implemented a skill audit exam for graduating seniors in 1999 with the purpose of assessing the teaching and the students' mastery of core concepts in EE. However, consistent low scores for the first years in which the test was administered suggested that students had little…

  14. Reschooling Society and the Promise of ee-Learning: An Interview with Steve Eskow

    ERIC Educational Resources Information Center

    Trevitte, Chad; Eskow, Steve

    2007-01-01

    In this article, Chad Trevitte interviews "Innovate" guest editor Steve Eskow about the concept of ee-learning and the promise it holds for revitalizing higher education. Eskow defines ee-learning as a combination of the electronic technologies employed in online learning ("e-learning 1") and a pedagogy of experiential learning rooted in real-life…

  15. Analysis of the EE-3A Temperature Logs Following the Expt. 2064 Pre-Pump

    SciTech Connect

    Brown, Donald W.

    1985-12-24

    From Nov. 25 to Dec. 1, 1985, 189,700 gallons of Fenton Hill well water were injected into EE-2 using the big Kobe pump (at 34 gpm). Temperature logs were run in EE-3A on Dec. 3 and 5 to assess the results of this reservoir reinflation.

  16. Redrilling of well EE-3 at the Los Alamos National Laboratory HDR (Hot Dry Rock) project

    SciTech Connect

    Schillo, J.C.; Nicholson, R.W.; Hendron, R.H.; Thomson, J.C.

    1987-01-01

    The successful sidetracking of well EE-3 and the drilling of well EE-3A proved that with detailed planning and by adjusting techniques based on previous experience at Fenton Hill, drilling can be accomplished with reduced risk. The primary drilling problems associated with drilling of hot, crystalline basement rock, are (a) abrasiveness between the downhole tools and the formations and (b) a crooked wellbore path. These were essentially eliminated by a specially designed drilling fluid and careful pre-planning of the directional drilling operations. These improvements have taken much of the risk out of drilling at the Fenton Hill Hot Dry Rock (HDR) Geothermal Test Site. The sidetracking of EE-3 and drilling of EE-3A were undertaken to complete the hydraulic connection between boreholes. Drilling through fractured regions indicated by the dense zones of microseismic activity increased the probability of success. EE-3 was sidetracked at 9373' and redrilled to a depth of 13,182'.

  17. Experiment 2018, First Fracturing Attempt Below Casing Shoe in EE-2 (1982-7-19/20)

    SciTech Connect

    Hoffers, Bernard

    1983-03-15

    The purpose of Experiment 2018 was to achieve a hydraulic connection between EE-2 and EE-3 in the region just below their respective casing shoes. To protect the cassing of EE-2, the fracturing fluid had to be pumped down a 3-1/2 inch drill string to an Otis casing packer set 240 ft above the casing shoe of EE-2. Pumping started at 16:23 of July 19, 1982, and was terminated at 2:02 on July 20, 1982, due to hardware failure, after some trouble with the setting of the casing packer had delayed the beginning of the experiment for approximately two days. Prior to the experiment, a sand plug in EE-2 had been set, with its top at 11,910 ft (all depths referenced her are cable depths). A total of 5,698 bbls had been pumped. No hydraulic connection appeared at the end of Experiment 2018.

  18. The research and scheme of RBAC using J2EE security mechanisms

    NASA Astrophysics Data System (ADS)

    Zhang, Fangzhou; Sheng, Xiaoyu; Niu, Yingying; Wang, Fengpin; Zhang, Han

    2006-10-01

    Access control based on RBAC makes the system suitable to the security strategy for special application, relieves burden of system administrators and can adapt itself to the adjustment of the system structure flexibly. But all the existing security mechanisms of the middleware technology can't support the RBAC model very well. The method using J2EE security mechanisms to support RBAC is showed in this paper. First, the configuration of J2EE security systems is given in the paper and the algorithm of J2EE authorization decision is designed. Then, the language of J2EE security description is used to define RBAC, and realization of the requirement of J2EE security service is given. It has achieved the anticipative effect in virtue of deployment and application on the platform of the national science technology infrastructure.

  19. Combatting Ionic Aggregation using Dielectric Forces Combining Modeling/Simulation and Experimental Results to Explain End-capping of Primary Amine Functionalized Polystyrene

    SciTech Connect

    Messman, Jamie M; Goswami, Monojoy; Pickel, Deanna L; Uhrig, David; Sumpter, Bobby G; Mays, Jimmy

    2011-01-01

    Chain-end functionalization of living poly(styryl)lithium using 1-(3-bromopropyl)-2,2,5,5-tetramethyl-1-aza-2,5-disilacyclo-pentane (BTDP) to generate primary amine end-functionalized polystyrene was investigated using high vacuum anionic polymerization techniques. 13C NMR spectroscopy and Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) were used to evaluate polymer end-groups and demonstrated that quantitative amine functionalized polymer was attained under appropriate reaction conditions. In general, the polymerization of styrene was conducted in benzene and the end-capping reaction was performed by adding tetrahydrofuran (THF) to the reaction prior to the addition of BTDP in THF at room temperature. Results indicated that approximately 20% THF by volume is required to obtain 100% end-capping free from side reactions. When too little or no THF was present, side reactions such as lithium halogen exchange followed by Wurtz coupling resulted in unfunctionalized head-to-head dimer as well as other byproducts. Modeling and simulation of the solvent effects using hybrid methods (the so-called QM/MM method) suggest that THF effectively dissociated the anionic chain-end aggregation, thereby resulting in the desired primary amine functionalized polymer. Molecular dynamics (MD) simulations were conducted to develop an understanding of the physics of counterions involved in the end-functionalization process.

  20. A simple method for the synthesis of a polar-embedded and polar-endcapped reversed-phase chromatographic packing with low activity of residue silanols.

    PubMed

    Liu, Hai-yan; Li, Zhi-yong; Liu, Dan; Xue, Ying-wen; Shi, Zhi-guo

    2016-04-22

    Octadecyl bonded silica (ODS) is the most popular packing for reversed-phase chromatography. However, it generally demonstrates bad resolution for polar analytes because of the residue silanols and its poor stability in aqueous mobile phase. To address the problem, a new reversed-phase packing containing both polar-embedded and polar-endcapped moieties was proposed. It was prepared by a very simple method, in which the epoxide addition reaction of 3-glycidoxypropyltrimethoxysilane with 1-octadecanethiol proceeded simultaneously with the reaction of silane coupling onto silica particles. By controlling the molecular ratio of 3-glycidoxypropyltrimethoxysilane to 1-octadecanethiol higher than 1.0 (1.56 for the present study), both polar-embedded and polar-endcapped moieties were achieved onto the packing. The performance of the packing was evaluated in detail. The results demonstrated that neutral, acidic and basic analytes were well separated on the packing. The column efficiency for phenanthrene was 34,200 theoretical plates per meter. In addition, four nucleotides can be separated in 100% phosphate buffered saline solution with good reproducibility, which indicates the packing has good stability in aqueous mobile phase. Amitriptyline, a typical basic analytes, was eluted out with relatively symmetric peak shape (asymmetry factor of 1.36), which implies that the packing has not suffered from the negative effect of residue silanols significantly. Good stability in buffer solution of pH ranging from 2.0 to 10.0 was also documented for the packing.

  1. 31 CFR 351.69 - When is a book-entry Series EE savings bond validly issued?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false When is a book-entry Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.69 When is a book-entry Series EE savings bond validly issued? A book-entry bond is validly issued when it is...

  2. 31 CFR 351.69 - When is a book-entry Series EE savings bond validly issued?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false When is a book-entry Series EE... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.69 When is a book-entry Series EE savings bond validly issued? A book-entry bond is validly issued when it is...

  3. 31 CFR 351.69 - When is a book-entry Series EE savings bond validly issued?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false When is a book-entry Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.69 When is a book-entry Series EE savings bond validly issued? A book-entry bond is validly issued when it is posted...

  4. 31 CFR 351.69 - When is a book-entry Series EE savings bond validly issued?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false When is a book-entry Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.69 When is a book-entry Series EE savings bond validly issued? A book-entry bond is validly issued when it is posted...

  5. 31 CFR 351.64 - What is the issue date of a book-entry Series EE savings bond?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false What is the issue date of a book... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.64 What is the issue date of a book-entry Series EE savings bond? The issue date of a book-entry Series EE savings...

  6. 31 CFR 351.69 - When is a book-entry Series EE savings bond validly issued?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When is a book-entry Series EE savings... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.69 When is a book-entry Series EE savings bond validly issued? A book-entry bond is validly issued when it is posted to...

  7. 31 CFR 351.60 - How are book-entry Series EE savings bonds purchased and held?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false How are book-entry Series EE savings... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.60 How are book-entry Series EE savings bonds purchased and held? Book-entry bonds must be purchased and held online...

  8. 31 CFR 351.64 - What is the issue date of a book-entry Series EE savings bond?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false What is the issue date of a book-entry... OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.64 What is the issue date of a book-entry Series EE savings bond? The issue date of a book-entry Series EE savings bond...

  9. 31 CFR 351.84 - Does Fiscal Service make any reservations as to issue of Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... reservations as to issue of Series EE savings bonds? 351.84 Section 351.84 Money and Finance: Treasury... FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.84 Does Fiscal Service make any reservations as to issue of Series EE savings bonds? We may reject...

  10. 31 CFR 351.81 - Is the Education Savings Bond Program available for Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... available for Series EE savings bonds? 351.81 Section 351.81 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.81 Is the Education Savings Bond Program available for Series EE savings bonds? You may be able to exclude from...

  11. 31 CFR 351.81 - Is the Education Savings Bond Program available for Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... available for Series EE savings bonds? 351.81 Section 351.81 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.81 Is the Education Savings Bond Program available for Series EE savings bonds? You may be able to exclude from...

  12. 31 CFR 351.84 - Does Public Debt make any reservations as to issue of Series EE savings bonds?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... as to issue of Series EE savings bonds? 351.84 Section 351.84 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.84 Does Public Debt make any reservations as to issue of Series EE savings bonds? We may reject any application...

  13. 31 CFR 351.14 - When are rate announcements that apply to Series EE savings bonds announced?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... apply to Series EE savings bonds announced? 351.14 Section 351.14 Money and Finance: Treasury... FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.14 When are rate announcements...

  14. 31 CFR 351.83 - May Public Debt issue Series EE savings bonds only in book-entry form?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false May Public Debt issue Series EE... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.83 May Public Debt issue Series EE savings bonds only in book-entry form? We reserve the right to issue bonds only...

  15. 31 CFR 351.9 - When will I receive the redemption value of my Series EE savings bonds?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... value of my Series EE savings bonds? 351.9 Section 351.9 Money and Finance: Treasury Regulations... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.9 When will I receive the redemption value...

  16. 31 CFR 351.9 - When will I receive the redemption value of my Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... value of my Series EE savings bonds? 351.9 Section 351.9 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.9 When will I receive the redemption value...

  17. 31 CFR 351.9 - When will I receive the redemption value of my Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... value of my Series EE savings bonds? 351.9 Section 351.9 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.9 When will I receive the redemption value...

  18. 31 CFR 351.84 - Does Public Debt make any reservations as to issue of Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... as to issue of Series EE savings bonds? 351.84 Section 351.84 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.84 Does Public Debt make any reservations as to issue of Series EE savings bonds? We may reject any application...

  19. 31 CFR 351.84 - Does Public Debt make any reservations as to issue of Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... reservations as to issue of Series EE savings bonds? 351.84 Section 351.84 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.84 Does Public Debt make any reservations as to issue of Series EE savings bonds? We may reject any...

  20. 31 CFR 351.81 - Is the Education Savings Bond Program available for Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... available for Series EE savings bonds? 351.81 Section 351.81 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.81 Is the Education Savings Bond Program available for Series EE savings bonds? You may be able to exclude from...

  1. 31 CFR 351.84 - Does Public Debt make any reservations as to issue of Series EE savings bonds?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... as to issue of Series EE savings bonds? 351.84 Section 351.84 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.84 Does Public Debt make any reservations as to issue of Series EE savings bonds? We may reject any application...

  2. 40 CFR Appendix A to Subpart Ee of... - States With Approved State Implementation Plan Revisions Concerning Allocations

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Implementation Plan Revisions Concerning Allocations A Appendix A to Subpart EE of Part 97 Protection of... PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR NOX Allowance Allocations Pt. 97, Subpt. EE, App. A Appendix A to Subpart EE of Part 97—States With Approved State Implementation Plan Revisions...

  3. 40 CFR Appendix A to Subpart Ee of... - States With Approved State Implementation Plan Revisions Concerning Allocations

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Implementation Plan Revisions Concerning Allocations A Appendix A to Subpart EE of Part 97 Protection of... PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR NOX Allowance Allocations Pt. 97, Subpt. EE, App. A Appendix A to Subpart EE of Part 97—States With Approved State Implementation Plan Revisions Concerning...

  4. 31 CFR 351.14 - When are rate announcements that apply to Series EE savings bonds announced?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... apply to Series EE savings bonds announced? 351.14 Section 351.14 Money and Finance: Treasury... PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds General Provisions § 351.14 When are rate announcements...

  5. 31 CFR 351.68 - Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (TINs) required for registration of book-entry Series EE savings bonds? 351.68 Section 351.68 Money and... TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.68 Are taxpayer identification numbers (TINs) required for registration of book-entry...

  6. 31 CFR 351.68 - Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (TINs) required for registration of book-entry Series EE savings bonds? 351.68 Section 351.68 Money and... EE Savings Bonds § 351.68 Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE savings bonds? The TIN of each person named in the registration is required...

  7. 31 CFR 351.21 - How are redemption values determined during any extended maturity period of Series EE savings...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? 351... Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.21 How are redemption values determined during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? The...

  8. 31 CFR 351.21 - How are redemption values determined during any extended maturity period of Series EE savings...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? 351... Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.21 How are redemption values determined during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? The...

  9. 31 CFR 351.21 - How are redemption values determined during any extended maturity period of Series EE savings...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? 351... Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.21 How are redemption values determined during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? The...

  10. 31 CFR 351.21 - How are redemption values determined during any extended maturity period of Series EE savings...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? 351... Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.21 How are redemption values determined during any extended maturity period of Series EE savings bonds with issue dates prior to May 1, 1995? The...

  11. [Homozygous hemoglobin-E (Hb-EE) disease].

    PubMed

    Amendola, G; Danise, P; Di Palma, A; Franzese, M; Avino, D; D'Arco, A M

    2004-01-01

    The Authors report on a 16 year-old girl, of Cambodian descent, who was admitted to the hospital for hematuria. She showed a mild microcytic, hypochromic anemia with a normal iron balance; clinical examination was normal with neither pallor nor icterus nor splenomegaly; electrophoresis of hemoglobin yielded no hemoglobin A, a sligtly increased amount of HbF and a single band with a mobility similar to that of HbA2; the patient showed no evidence of overt increased hemolysis. With the DNA technology a final diagnosis of homozygous hemoglobin E was made. Hemoglobin E is the most common Hb variant among Southeast Asian populations. The Authors discuss on the benign nature of Hb-EE disease, pointing out that the presence of a single HbE gene in combination with that for beta-thalassemia leads generally to a disorder often comparable in severity to that of homozygous beta-thalassemia. With the recent migration of a high number of people from the countries, where HbE is extremely frequent, to the Western world (including Italy), this thalassemia syndrome is now a global health problem; therefore its knowledge is an important diagnostic challenge to all the experts involved in the care of thalassemic patients.

  12. Lower bound on e+e- decay of massive neutrinos

    NASA Technical Reports Server (NTRS)

    Cowsik, R.; Schramm, D. N.; Hoflicn, P

    1988-01-01

    Astronomical observations of SN1987A, such as the light curve, spectral intensities of lines, the X-ray emissions, etc., constrain the lifetime for the decay of a heavy neutrino 1 MeV less than or equivalent to m sub nu H less than or equal to 50 MeV through nu sub H yields nu sub 1+e(+)+e(-) exceeds 4 x 10 to the 15th exp(-m sub nuH/5MeV) seconds. Otherwise. resulting ionization energy deposits and stronger X-ray emission would have been observed. This coupled with traditional cosmological considerations argues that the lifetime of tau-neutrinos probably exceeds the age of the universe. This in turn would imply the standard cosmological mass bound does apply to nu sub tau, namely m sub nu sub tau less than or equivalent to 100 h squared eV (where h is the Hubble constant in units of 100 km/sec/mpc). The only significant loophole for these latter arguments would be if nu sub tau primarily decays rapidly into particles having very weak interactions.

  13. CAFE: aCcelerated Alignment-FrEe sequence analysis.

    PubMed

    Lu, Yang Young; Tang, Kujin; Ren, Jie; Fuhrman, Jed A; Waterman, Michael S; Sun, Fengzhu

    2017-05-03

    Alignment-free genome and metagenome comparisons are increasingly important with the development of next generation sequencing (NGS) technologies. Recently developed state-of-the-art k-mer based alignment-free dissimilarity measures including CVTree, $d_2^*$ and $d_2^S$ are more computationally expensive than measures based solely on the k-mer frequencies. Here, we report a standalone software, aCcelerated Alignment-FrEe sequence analysis (CAFE), for efficient calculation of 28 alignment-free dissimilarity measures. CAFE allows for both assembled genome sequences and unassembled NGS shotgun reads as input, and wraps the output in a standard PHYLIP format. In downstream analyses, CAFE can also be used to visualize the pairwise dissimilarity measures, including dendrograms, heatmap, principal coordinate analysis and network display. CAFE serves as a general k-mer based alignment-free analysis platform for studying the relationships among genomes and metagenomes, and is freely available at https://github.com/younglululu/CAFE. © The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.

  14. Search for EeV protons of galactic origin

    NASA Astrophysics Data System (ADS)

    Abbasi, R. U.; Abe, M.; Abu-Zayyad, T.; Allen, M.; Azuma, R.; Barcikowski, E.; Belz, J. W.; Bergman, D. R.; Blake, S. A.; Cady, R.; Cheon, B. G.; Chiba, J.; Chikawa, M.; Fujii, T.; Fukushima, M.; Goto, T.; Hanlon, W.; Hayashi, Y.; Hayashi, M.; Hayashida, N.; Hibino, K.; Honda, K.; Ikeda, D.; Inoue, N.; Ishii, T.; Ishimori, R.; Ito, H.; Ivanov, D.; Jui, C. C. H.; Kadota, K.; Kakimoto, F.; Kalashev, O.; Kasahara, K.; Kawai, H.; Kawakami, S.; Kawana, S.; Kawata, K.; Kido, E.; Kim, H. B.; Kim, J. H.; Kim, J. H.; Kishigami, S.; Kitamura, S.; Kitamura, Y.; Kuzmin, V.; Kwon, Y. J.; Lan, J.; Lubsandorzhiev, B.; Lundquist, J. P.; Machida, K.; Martens, K.; Matsuda, T.; Matsuyama, T.; Matthews, J. N.; Minamino, M.; Mukai, K.; Myers, I.; Nagasawa, K.; Nagataki, S.; Nakamura, T.; Nonaka, T.; Nozato, A.; Ogio, S.; Ogura, J.; Ohnishi, M.; Ohoka, H.; Oki, K.; Okuda, T.; Ono, M.; Onogi, R.; Oshima, A.; Ozawa, S.; Park, I. H.; Pshirkov, M. S.; Rodriguez, D. C.; Rubtsov, G.; Ryu, D.; Sagawa, H.; Saito, K.; Saito, Y.; Sakaki, N.; Sakurai, N.; Scott, L. M.; Sekino, K.; Shah, P. D.; Shibata, T.; Shibata, F.; Shimodaira, H.; Shin, B. K.; Shin, H. S.; Smith, J. D.; Sokolsky, P.; Stokes, B. T.; Stratton, S. R.; Stroman, T. A.; Suzawa, T.; Takahashi, Y.; Takamura, M.; Takeda, M.; Takeishi, R.; Taketa, A.; Takita, M.; Tameda, Y.; Tanaka, M.; Tanaka, K.; Tanaka, H.; Thomas, S. B.; Thomson, G. B.; Tinyakov, P.; Tirone, A. H.; Tkachev, I.; Tokuno, H.; Tomida, T.; Troitsky, S.; Tsunesada, Y.; Tsutsumi, K.; Uchihori, Y.; Udo, S.; Urban, F.; Wong, T.; Yamane, R.; Yamaoka, H.; Yamazaki, K.; Yang, J.; Yashiro, K.; Yoneda, Y.; Yoshida, S.; Yoshii, H.; Zollinger, R.; Zundel, Z.

    2017-01-01

    Cosmic rays in the energy range 1018.0-1018.5 eV are thought to have a light, probably protonic, composition. To study their origin one can search for anisotropy in their arrival directions. Extragalactic cosmic rays should be isotropic, but galactic cosmic rays of this type should be seen mostly along the galactic plane, and there should be a shortage of events coming from directions near the galactic anticenter. This is due to the fact that, under the influence of the galactic magnetic field, the transition from ballistic to diffusive behavior is well advanced, and this qualitative picture persists over the whole energy range. Guided by models of the galactic magnetic field that indicate that the enhancement along the galactic plane should have a standard deviation of about 20° in galactic latitude, and the deficit in the galactic anticenter direction should have a standard deviation of about 50° in galactic longitude, we use the data of the Telescope Array surface detector in 1018.0 to 1018.5 eV energy range to search for these effects. The data are isotropic. Neither an enhancement along the galactic plane nor a deficit in the galactic anticenter direction is found. Using these data we place an upper limit on the fraction of EeV cosmic rays of galactic origin at 1.3% at 95% confidence level.

  15. Dee, John (1527-1608)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Navigator, mathematician, traveler, polymath, mystic, charlatan, astrologer, model for Shakespeare's Prospero and King Lear, and court intriguer. Born in London, he became a navigation instructor, applying Euclidean geometry to navigation and building the instruments to do so. He advised expeditions seeking the Northwest passage to the Pacific via Canada. He cast horoscopes for Elizabeth I, recei...

  16. 2014 Pee Dee germplasm releases

    USDA-ARS?s Scientific Manuscript database

    PD 05035, PD 05041, PD 05064, PD 05069, PD 05070, PD 05071, PD 06001, and PD 06078 are noncommercial breeding lines of cotton jointly released by the Agricultural Research Service, United States Department of Agriculture, Clemson University Experiment Station, and Cotton Incorporated in 2014. These ...

  17. Preferential acceleration and magnetic field enhancement in plasmas with e+/e- beam injection

    NASA Astrophysics Data System (ADS)

    Huynh, Cong Tuan; Ryu, Chang-Mo

    2016-03-01

    A theoretical model of current filaments predicting preferential acceleration/deceleration and magnetic field enhancement in a plasma with e+/e- beam injection is presented. When the e+/e- beams are injected into a plasma, current filaments are formed. The beam particles are accelerated or decelerated depending on the types of current filaments in which they are trapped. It is found that in the electron/ion ambient plasma, the e+ beam particles are preferentially accelerated, while the e- beam particles are preferentially decelerated. The preferential particle acceleration/deceleration is absent when the ambient plasma is the e+/e- plasma. We also find that the particle momentum decrease can explain the magnetic field increase during the development of Weibel/filamentation instability. Supporting simulation results of particle acceleration/deceleration and magnetic field enhancement are presented. Our findings can be applied to a wide range of astrophysical plasmas with the e+/e- beam injection.

  18. Precision directional drilling of hot-dry-rock geothermal production well EE-3

    SciTech Connect

    Carden, R.S.; Rowley, J.C.; Helmick, C.

    1982-01-01

    The deviated directional drilling of the hot dry rock (HDR) geothermal production well EE-3 (Energy Extraction No. 3) was successfully completed on August 1981. The injection well, EE-2, previously had been drilled with its lower part at an inclination of 35/sup 0/ to the vertical. It reached an on-line depth of 15,292 feet and its bottom-hole temperature was 608/sup 0/F (320/sup 0/C). The production well EE-3 was required to be drilled 1200 feet (370 m) above and parallel to the injection well. This necessitated high precision, controlled-trajectory directional drilling operations. The directional drilling of EE-3 was accomplished within the required tolerances at a depth of 13,933 feet and a bottom-hole temperature of 580/sup 0/F (280/sup 0/C).

  19. Experiment 2035: Investigation of the EE-2 Casing Shoe and Openhole Interval

    SciTech Connect

    Brown, Donald W.; Dennis, Bert R.; Murphy, Hugh D.

    1983-11-09

    The primary objectives for Expt. 2035 are to determine the amount and distribution of the postulated flow behind the EE-2 casing and determine the flow split between the several openhole fracture entrances.

  20. Optimization of a ligand immobilization and azide group endcapping concept via "Click-Chemistry" for the preparation of adsorbents for antibody purification.

    PubMed

    Horak, Jeannie; Hofer, Stefan; Lindner, Wolfgang

    2010-12-15

    This report describes and compares different strategies to deactivate (endcap) epoxide groups and azide groups on bio-chromatographic support surfaces, before and after ligand attachment. Adsorbents possessing epoxide groups were deactivated using acidic hydrolysis or were endcapped with 2-mercaptoethanol or 2-ethanolamine. The influence of surface-bound 2-ethanolamine was demonstrated for the triazine-type affinity adsorbent B14-2LP-FractoAIMs-1, which was tested in combination with the weak anion exchange material 3-aminoquinuclidine-FractoAIMs-3 (AQ-FA3). Azide groups were modified with 2-propargylalcohol using Click-Chemistry. Besides the conventional one-pot Click reaction, an alternative approach was introduced. This optimized Click protocol was employed (i) for the preparation of the weak anion exchange material AdQ-triazole-Fractogel (AdQ-TRZ-FG) and (ii) for the endcapping of residual azide groups with 3-propargyl alcohol. Using the new Click reaction protocol the ligand immobilization rate was doubled from 250 to 500 μmol/g dry adsorbent. Furthermore, the modified support surface was proven to be inert towards the binding of immunoglobulin G (IgG) as well as feed impurities. A thorough evaluation of modified surfaces and adsorbents was performed with dynamic binding experiments using cell culture supernatant containing monoclonal human immunoglobulin G (h-IgG-1). Besides SDS-Page, a recently introduced Protein A-size exclusion HPLC method (PSEC-HPLC) was used to visualize the feed impurity composition and the IgG content of all collected sample fractions in simple PSEC-Plots. A surprising outcome of this study was the irreversible binding of IgG to azide modified surfaces. It was found that organic azide compounds, e.g. 1-azide-3-(2-propen-1-yloxy)-2-propanol (AGE-N3) promote antibody aggregation to a slightly higher extent than the inorganic sodium azide. The possibility that the Hofmeister Series of salt anions may be applicable to predict the

  1. Environmental exposure assessment of ethinyl estradiol (EE) from a combined hormonal vaginal contraceptive ring after disposal; leaching from landfills.

    PubMed

    Geurts, M G J; de Boer, W; de Graaf, J S; van Ginkel, C G

    2007-05-15

    In this study an environmental exposure assessment and experiments were carried out to identify the leaching potential of ethinyl estradiol (EE) present in a vaginal contraceptive (NuvaRing) when disposed of in landfills. Landfill material and a sandy soil were used to investigate the mobility of EE. Log K(oc) values determined in the range of 3 to 4 indicate that EE does not have a high mobility in landfills and soils. Column experiments were used to estimate that it takes approximately 40 years before EE leaches from a column of 1 m of landfill material or sandy soil. This column experiment, which was performed with an EE concentration based on worst-case assumptions, demonstrates that the emission of EE from landfills is negligible. Sandy soils below landfills also act as a strong sorbent of EE, thereby further reducing the potential for groundwater contamination.

  2. Reprogramming of fetal cells by avian EE for generation of pluripotent stem cell like cells in caprine.

    PubMed

    Bharadwaj, Parul; Kumar, Kuldeep; Singh, Renu; Puri, Gopal; Yasotha, T; Kumar, Manish; Bhure, Sanjeev; Das, B C; Sarkar, M; Bag, Sadhan

    2013-10-01

    The present work was carried out to study the ability of avian "Extract Egg" (EE) for reprogramming caprine fetal cells. The isolated caprine fetal cells were cultured in stem cell media supplemented with different percentages of either EE or FBS. The results indicated that the supplementation of 2-4% EE formed lesser but larger size stem cell like cell colonies as compared to 6% or 10% EE. The expression of pluripotent genes were comparatively higher in colonies developed in 2% or 4% as compared to 6% or 10% EE. Further, immunocytochemistry revealed that the colonies developed in all percentage of EE expressed pluripotent markers like Oct4, Nanog, TRA-1-60 and TRA-1-81. Our findings indicated that avian EE has the potentiality to reprogram caprine fetal cells into embryonic state which may help in generation of pluripotent stem cells without using viral vector. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. The predictive validity of expressed emotions (EE) in schizophrenia. A 20-year prospective study.

    PubMed

    Cechnicki, Andrzej; Bielańska, Anna; Hanuszkiewicz, Igor; Daren, Artur

    2013-02-01

    The level of expressed emotions in the family (EE) and components thereof (emotional over-involvement EOI, and critical comments CC) have been found to be related to treatment outcomes in psychotic patients. One point of interest is the dynamic of various outcomes in relation to initial EE, CC and EOI levels. 43 individuals with diagnosis of schizophrenia were assessed at 1, 3, 7, 12 and 20-year follow-ups. The EE indicator was evaluated during the index hospitalization. Outcome indicators included: number of relapses, number and duration of in-patient rehospitalizations, and severity of psychopathological symptoms. 1) A high EE indicator was associated with a higher number of relapses in every follow-up and differences between the groups with low and high EE indicators proved significant after 3, 7, 12 and 20 years of the illness. 2) A high EE indicator was associated with a higher number of rehospitalizations after 3 and 7 years, and showed as a clear trend after 12 and 20 years. 3) A high level of CC was associated with a higher number of relapses. 4) The severity of positive symptoms increased only in the group with high CC. 5) The negative syndrome was not associated with EE, EOI or CC. The EE indicator may be considered a valid prolonged predictor of relapses and rehospitalizations. A high level of CC was associated with a higher number of relapses and intensification of the positive syndrome in both the short-term and long-term course of the illness. Copyright © 2012 Elsevier Ltd. All rights reserved.

  4. Low-flow frequency and flow duration of selected South Carolina streams in the Pee Dee River basin through March 2007

    USGS Publications Warehouse

    Feaster, Toby D.; Guimaraes, Wladmir B.

    2009-01-01

    Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular need is information concerning the low-flow characteristics of streams; this information is especially important for effectively managing the State's water resources during critical flow periods such as the severe drought that occurred between 1998 and 2002 and the most recent drought that occurred between 2006 and 2009. In 2008, the U.S. Geological Survey, in cooperation with the South Carolina Department of Health and Environmental Control, initiated a study to update low-flow statistics at continuous-record streamgaging stations operated by the U.S. Geological Survey in South Carolina. Under this agreement, the low-flow characteristics at continuous-record streamgaging stations will be updated in a systematic manner during the monitoring and assessment of the eight major basins in South Carolina as defined and grouped according to the South Carolina Department of Health and Environmental Control's Watershed Water Quality Management Strategy. Depending on the length of record available at the continuous-record streamgaging stations, low-flow frequency characteristics are estimated for annual minimum 1-, 3-, 7-, 14-, 30-, 60-, and 90-day average flows with recurrence intervals of 2, 5, 10, 20, 30, and 50 years. Low-flow statistics are presented for 18 streamgaging stations in the Pee Dee River basin. In addition, daily flow durations for the 5-, 10-, 25-, 50-, 75-, 90-, and 95-percent probability of exceedance also are presented for the stations. The low-flow characteristics were computed from records available through March 31, 2007. The last systematic update of low-flow characteristics in South Carolina occurred more than 20 years

  5. Enhanced surface segregation of poly(methyl methacrylate) end-capped with 2-perfluorooctylethyl methacrylate by introduction of a second block.

    PubMed

    Ni, Huagang; Gao, Jie; Li, Xuehua; Hu, Yanyan; Yan, Donghuan; Ye, XiuYun; Wang, Xinping

    2012-01-01

    New fluorinated copolymers of poly(methyl methacrylate)-b-poly(butyl methacrylate) or poly(n-octadecyl methacrylate) end-capped with 2-perfluorooctylethyl methacrylate (PMMA(x)-b-PBMA(y)-ec-PFMA(z) or PMMA(x)-b-PODMA(y)-ec-PFMA(z)) were synthesized by living atom transfer radical polymerization. Thin films made of PMMA(230)-b-PODMA(y)-ec-PFMA(1) were characterized by differential scanning calorimetry, angle-resolved X-ray photoelectron spectroscopy and X-ray diffraction. These films were found to exhibit robust surface segregation of the end groups. Furthermore, the fluorine enrichment factor at the film surface was found to increase linearly with increasing degree of polymerization of poly(n-octadecyl methacrylate) and its increasing fusion enthalpy in the second block, which enhances the segregation of the fluorinated moieties.

  6. Fluoroalkyl end-capped vinyltrimethoxysilane oligomer/anatase titanium oxide nanocomposites possessing photocatalytic activity even after calcination at 1000°C.

    PubMed

    Guo, Sujuan; Yoshioka, Hiroaki; Kakehi, Hiroshi; Kato, Yoshihiro; Miura, Masashi; Isu, Norifumi; Ameduri, Bruno; Sawada, Hideo

    2012-12-01

    Fluoroalkyl end-capped vinyltrimethoxysilane oligomer [R(F)-(VM)(n)-R(F)] underwent the sol-gel reaction under alkaline conditions in the presence of anatase titanium oxide nanoparticles (an-TiO(2)) in tetrahydrofuran to give the corresponding fluorinated oligomer/anatase titanium oxide nanocomposites [R(F)-(VM-SiO(2))(n)-R(F)/an-TiO(2)]. Crystalline structure of an-TiO(2) in the nanocomposites thus obtained was found to keep completely its structure without phase transformation to rutile even after calcination at 1000°C, although crystalline structure of the original an-TiO(2) nanoparticles underwent a complete phase transformation to the rutile under similar conditions. Interestingly, R(F)-(VM-SiO(2))(n)-R(F)/an-TiO(2) nanocomposites before and after calcination at 1000°C exhibited the similar photocatalytic activity for the decolorization of methylene blue under UV light irradiation.

  7. Modulating PCBM-Acceptor Crystallinity and Organic Solar Cell Performance by Judiciously Designing Small-Molecule Mainchain End-Capping Units.

    PubMed

    Jiang, Bo; Yao, Jiannian; Zhan, Chuanlang

    2016-10-05

    In this article, we report that the bulk-size and electron-donating/electron-accepting nature of moieties, which are end-capping onto small-molecule donor mainchain, not only modulate the donor's absorption, molecular frontier orbitals, and phase ordering, but also effectively tune the PC71BM-acceptor phase crystallinity. Compared to the electron-deficient trifluoromethyl (SM-CF3) units on the diketopyrrolopyrrole (DPP) small molecule mainchain ends, the electron-rich methoxyl (SM-OCH3) units ending on the same mainchain help improve the PC71BM-acceptor phase short-range ordering. As a result, the -OCH3 capping small-molecule displays larger short-circuit current density (Jsc) when blended with PC71BM (10.72 ± 0.22 vs. 16.15 ± 0.53 mA/cm(2)). However, the electron-donating nature of -OCH3 raises the donor HOMO level, which leads to a quite small open-circuit voltage (Voc) (0.624 vs. 0.881 V). Replacement of the -OCH3 with the large and weak electron-donating aromatic carbazolyl (SM-Cz) ones affords the small molecule of SM-Cz. The SM-Cz:PC71BM system affords a high Voc of 0.846 V and a large Jsc of 13.33 ± 0.34 mA/cm(2) after thermal annealing, and hence gives a larger power conversion efficiency (PCE) of 6.26 ± 0.13%, which is among the top values achieved so far from the DPP molecules. Taken together, these results demonstrate that engineering the end-capping units on small-molecule donor mainchain can effectively modulate the organic solar cell performance.

  8. 31 CFR 351.34 - What are the maturity periods of Series EE bonds with issue dates of May 1, 2005, or thereafter?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Series EE bonds with issue dates of May 1, 2005, or thereafter? 351.34 Section 351.34 Money and Finance... BUREAU OF THE FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates of...

  9. 31 CFR 351.71 - How can I find out what my book-entry Series EE savings bonds are worth?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE savings bonds are worth? 351.71 Section 351.71 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.71 How can I find out what my book-entry Series EE savings bonds are worth? (a) Redemption values. You may...

  10. 31 CFR 351.71 - How can I find out what my book-entry Series EE savings bonds are worth?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Series EE savings bonds are worth? 351.71 Section 351.71 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.71 How can I find out what my book-entry Series EE savings bonds are worth? (a) Redemption values. You may...

  11. 31 CFR 351.71 - How can I find out what my book-entry Series EE savings bonds are worth?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Series EE savings bonds are worth? 351.71 Section 351.71 Money and Finance: Treasury Regulations Relating... OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.71 How can I find out what my book-entry Series EE savings bonds are worth? (a) Redemption values. You may...

  12. 31 CFR 351.71 - How can I find out what my book-entry Series EE savings bonds are worth?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Series EE savings bonds are worth? 351.71 Section 351.71 Money and Finance: Treasury Regulations Relating... SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-entry Series EE Savings Bonds § 351.71 How can I find out what my book-entry Series EE savings bonds are worth? (a) Redemption values. You...

  13. 31 CFR 351.32 - How are redemption values calculated for Series EE bonds with issue dates of May 1, 1997, through...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... for Series EE bonds with issue dates of May 1, 1997, through April 1, 2005? 351.32 Section 351.32..., DEPARTMENT OF THE TREASURY BUREAU OF THE FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds...

  14. 31 CFR 351.32 - How are redemption values calculated for Series EE bonds with issue dates of May 1, 1997, through...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for Series EE bonds with issue dates of May 1, 1997, through April 1, 2005? 351.32 Section 351.32..., DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with...

  15. 31 CFR 351.67 - What happens if any person purchases book-entry Series EE savings bonds in excess of the maximum...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... book-entry Series EE savings bonds in excess of the maximum annual amount? 351.67 Section 351.67 Money... OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Book-Entry Series EE Savings Bonds § 351.67 What happens if any person purchases book-entry Series EE savings...

  16. 31 CFR 351.45 - What happens if I purchase definitive Series EE savings bonds in excess of the maximum annual...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE savings bonds in excess of the maximum annual amount? 351.45 Section 351.45 Money and Finance... BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Definitive Series EE Savings Bonds § 351.45 What happens if I purchase definitive Series EE savings bonds in excess of the maximum...

  17. 31 CFR 351.35 - What do I need to know about interest rates, penalties, and redemption values for Series EE bonds...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... rates, penalties, and redemption values for Series EE bonds with issue dates of May 1, 2005, or... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates of May 1, 2005, Or Thereafter § 351.35 What do I need to know...

  18. 31 CFR 351.34 - What are the maturity periods of Series EE bonds with issue dates of May 1, 2005, or thereafter?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Series EE bonds with issue dates of May 1, 2005, or thereafter? 351.34 Section 351.34 Money and Finance... BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates of May...

  19. Insulin-like growth factor 1 (IGF-1) mediates the effects of enriched environment (EE) on visual cortical development.

    PubMed

    Ciucci, Francesca; Putignano, Elena; Baroncelli, Laura; Landi, Silvia; Berardi, Nicoletta; Maffei, Lamberto

    2007-05-30

    Enriched environment (EE) has been recently shown to affect visual cortex development and plasticity, and to prevent dark rearing effects. The factors mediating EE effects on visual cortical development and plasticity are still unclear. We have investigated whether IGF-1 is involved in mediating EE effects on the developing visual cortex. We show that EE increases the number of IGF-1 positive neurons in the visual cortex at P18. Increasing IGF-1 in the visual cortex of non-EE rats by means of osmotic minipumps implanted at P18 mimics EE effects, accelerating visual acuity development, assessed with Visual Evoked Potentials (VEPs). Blocking IGF-1 action in the visual cortex of EE rats by means of the IGF-1 receptor antagonist JB1 from P18 completely blocks EE action on visual acuity development. These results show that IGF-1 is a key factor mediating EE effects on visual cortical development. We then show that IGF-1 affects GAD65 immunoreactivity in perisomatic innervation and the condensation of Chondroitin Sulphate Proteoglycans (CSPGs) in perineuronal nets (PNNs) in the visual cortex. This suggests that IGF-1 action in mediating EE effects could be exerted through the modulation of intracortical inhibitory circuitry and PNN development.

  20. Working with women prisoners who seriously harm themselves: ratings of staff expressed emotion (EE).

    PubMed

    Moore, Estelle; Andargachew, Sara; Taylor, Pamela J

    2011-02-01

    Prison staff are repeatedly exposed to prisoners' suicidal behaviours; this may impair their capacity to care. Expressed emotion (EE), as a descriptor of the 'emotional climate' between people, has been associated with challenging behaviour in closed environments, but not previously applied to working alliances in a prison. To investigate the feasibility of rating EE between staff and suicidal women in prison; to test the hypothesis that most such staff-inmate alliances would be rated high EE. All regular staff on two small UK prison units with high suicidal behaviour rates were invited to participate. An audiotaped five-minute speech sample (FMSS) about work with one nominated suicidal prisoner was embedded in a longer research interview, then rated by two trained raters, independent of the interview process and the prison. Seven prison officers and 8 clinically qualified staff completed interviews; 3 refused, but 17 others were not interviewed, reasons including not having worked long enough with any one such prisoner. Participants and non-participants had similar relevant backgrounds. Contrary to our hypothesis, EE ratings were generally 'low'. As predicted, critical comments were directed at high frequency oppositional behaviour. EE assessments with prison staff are feasible, but our sample was small and turnover of prisoners high, so the study needs replication. Attributions about problem behaviour to illness, and/or traumatic life experience, tend to confirm generally supportive working relationships in this sample. Copyright © 2010 John Wiley & Sons, Ltd.

  1. Probing the Higgs with angular observables at future e+e- colliders

    NASA Astrophysics Data System (ADS)

    Liu, Zhen

    2016-10-01

    I summarize our recent works on using differential observables to explore the physics potential of future e+e- colliders in the framework of Higgs effective field theory. This proceeding is based upon Refs. 1 and 2. We study angular observables in the e+e-→ ZHℓ+ℓ-bb¯ channel at future circular e+e- colliders such as CEPC and FCC-ee. Taking into account the impact of realistic cut acceptance and detector effects, we forecast the precision of six angular asymmetries at CEPC (FCC-ee) with center-of-mass energy s = 240 GeV and 5 (30) ab-1 integrated luminosity. We then determine the projected sensitivity to a range of operators relevant for the Higgsstrahlung process in the dimension-6 Higgs EFT. Our results show that angular observables provide complementary sensitivity to rate measurements when constraining various tensor structures arising from new physics. We further find that angular asymmetries provide a novel means of constraining the “blind spot” in indirect limits on supersymmetric scalar top partners. We also discuss the possibility of using ZZ-fusion at e+e- machines at different energies to probe new operators.

  2. BEopt-CA (Ex): A Tool for Optimal Integration of EE, DR and PV in Existing California Homes

    SciTech Connect

    Christensen, Craig; Horowitz, Scott; Maguire, Jeff; Velasco, Paulo Tabrares; Springer, David; Coates, Peter; Bell, Christy; Price, Snuller; Sreedharan, Priya; Pickrell, Katie

    2014-04-01

    This project targeted the development of a software tool, BEopt-CA (Ex) (Building Energy Optimization Tool for California Existing Homes), that aims to facilitate balanced integration of energy efficiency (EE), demand response (DR), and photovoltaics (PV) in the residential retrofit1 market. The intent is to provide utility program managers and contractors in the EE/DR/PV marketplace with a means of balancing the integration of EE, DR, and PV

  3. Low-flow characteristics and profiles for the Rocky River in the Yadkin-Pee Dee River basin, North Carolina, through 2002

    USGS Publications Warehouse

    Weaver, J. Curtis; Fine, Jason M.

    2003-01-01

    An understanding of the magnitude and frequency of low-flow discharges is an important part of protecting surface-water resources and planning for municipal and industrial economic expansion. Low-flow characteristics are summarized for 12 continuous-record gaging stations and 44 partial-record measuring sites in the Rocky River basin in North Carolina. Records of discharge collected through the 2002 water year at continuous-record gaging stations and through the 2001 water year at partial-record measuring sites were used. Flow characteristics included in the summary are (1) average annual unit flow; (2) 7Q10 low-flow discharge, the minimum average discharge for a 7-consecutive-day period occurring, on average, once in 10 years; (3) 30Q2 low-flow discharge; (4) W7Q10 low-flow discharge, which is similar to 7Q10 discharge but is based only on flow during the winter months of November through March; and (5) 7Q2 low-flow discharge. The Rocky River basin drains 1,413 square miles (mi2) of the southern Piedmont Province in North Carolina. The Rocky River is about 91 miles long and merges with the Yadkin River in eastern Stanly County to form the Pee Dee River, which discharges into the Atlantic Ocean in South Carolina. Low-flow characteristics compiled for selected sites in the Rocky River basin indicated that the potential for sustained base flows in the upper half of the basin is relatively higher than for streams in the lower half of the basin. The upper half of the basin is underlain by the Charlotte Belt, where streams have been identified as having moderate potentials for sustained base flows. In the lower half of the basin, many streams were noted as having little to no potential for sustained base flows. Much of the decrease in base-flow potential is attributed to the underlying rock types of the Carolina Slate Belt. Of the 19 sites in the basin having minimal (defined as less than 0.05 cubic foot per second) or zero 7Q10 discharges, 18 sites are located in the

  4. Occurrence of 17α-ethynylestradiol (EE2) in the environment and effect on exposed biota: a review.

    PubMed

    Aris, Ahmad Zaharin; Shamsuddin, Aida Soraya; Praveena, Sarva Mangala

    2014-08-01

    17α-ethynylestradiol (EE2) is a synthetic hormone, which is a derivative of the natural hormone, estradiol (E2). EE2 is an orally bio-active estrogen, and is one of the most commonly used medications for humans as well as livestock and aquaculture activity. EE2 has become a widespread problem in the environment due to its high resistance to the process of degradation and its tendency to (i) absorb organic matter, (ii) accumulate in sediment and (iii) concentrate in biota. Numerous studies have reported the ability of EE2 to alter sex determination, delay sexual maturity, and decrease the secondary sexual characteristics of exposed organisms even at a low concentration (ng/L) by mimicking its natural analogue, 17β-estradiol (E2). Thus, the aim of this review is to provide an overview of the science regarding EE2, the concentration levels in the environment (water, sediment and biota) and summarize the effects of this compound on exposed biota at various concentrations, stage life, sex, and species. The challenges in respect of EE2 include the extension of the limited database on the EE2 pollution profile in the environment, its fate and transport mechanism, as well as the exposure level of EE2 for better prediction and definition revision of EE2 toxicity end points, notably for the purpose of environmental risk assessment. Copyright © 2014 Elsevier Ltd. All rights reserved.

  5. Evaluation and improvement of the properties of the novel cystine-knot microprotein McoEeTI for oral administration.

    PubMed

    Werle, M; Kafedjiiski, K; Kolmar, H; Bernkop-Schnürch, A

    2007-03-06

    Cystine-knot microproteins exhibit several properties that make them highly interesting as scaffolds for oral peptide drug delivery. It was therefore the aim of the study to evaluate the novel clinically relevant cystine-knot microprotein McoEeTI regarding its potential for oral delivery. Additionally, based on the gained results, important features of McoEeTI were improved. Enzymatic degradation was caused by chymotrypsin, trypsin and porcine small intestinal juice whereas McoEeTI was stable towards elastase, membrane bound proteases, pepsin and porcine gastric juice. Only minor McoEeTI degradation was observed during a 24h incubation period in rat plasma. In the presence of various physiological ions about 50% of McoEeTI formed di- and/or trimers. P(app) value of McoEeTI was determined to be (7.4+/-0.4)x10(-6)cm/s. Sodium caprate and polycarbophil-cysteine (PCP-Cys) had no beneficial effect on McoEeTI permeation, whereas the utilization of a chitosan-thiobutylamidine (Chito-TBA) system improved McoEeTI permeation 3-fold. Enzymatic stability could be strongly improved by the utilization of Bowman-Birk-Inhibitor (BBI) as well as PCP-Cys. In conclusion, this study indicates that McoEeTI represents a promising candidate as a novel scaffold for oral peptide drug delivery.

  6. Study of the Process e+e- → K+K-π+π- With the CMD-3 Detector at the VEPP-2000 e+e- Collider

    NASA Astrophysics Data System (ADS)

    Akhmetshin, R. R.; Anisenkov, A. V.; Aulchenko, V. M.; Banzarov, V. S.; Barkov, L. M.; Bashtovoy, N. S.; Berkaev, D. E.; Bragin, A. V.; Eidelman, S. I.; Epifanov, D. A.; Epshteyn, L. B.; Erofeev, A. L.; Fedotovich, G. V.; Gayazov, S. E.; Grebenuk, A. A.; Grigoriev, D. N.; Gromov, E. M.; Ignatov, F. V.; Karpov, S. V.; Kazanin, V. F.; Khazin, B. I.; Kirpotin, A. N.; Koop, I. A.; Kovalenko, O. A.; Kozyrev, A. N.; Kozyrev, E. A.; Krokovny, P. P.; Kuzmenko, A. E.; Kuzmin, A. S.; Logashenko, I. B.; Lukin, P. A.; Lysenko, A. P.; Mikhailov, K. Yu.; Okhapkin, V. S.; Pestov, Yu. N.; Perevedentsev, E. A.; Popov, A. S.; Popov, Yu. S.; Razuvaev, G. P.; Rogovsky, Yu. A.; Romanov, A. L.; Ruban, A. A.; Ryskulov, N. M.; Ryzhenenkov, A. E.; Shebalin, V. E.; Shemyakin, D. N.; Shwartz, B. A.; Shwartz, D. B.; Sibidanov, A. L.; Shatunov, P. Yu.; Shatunov, Yu. M.; Solodov, E. P.; Titov, V. M.; Talyshev, A. A.; Vorobiov, A. I.; Yudin, Yu. V.; Zharinov, Yu. M.

    2014-12-01

    We report preliminary results on the measurement of the cross section of the process e+e- → K+K-π+π- in the c.m. energy range from 1.5 GeV to 2 GeV. It is shown that the cross section is dominated by the contributions of several intermediate states K+K-ρ, K*Kπ, ϕπ+π- and K*K*.

  7. Long-lived charge-separated configuration of a push-pull archetype of Disperse Red 1 end-capped poly[9,9-bis(4-diphenylaminophenyl)fluorene].

    PubMed

    El-Khouly, Mohamed E; Chen, Yu; Zhuang, Xiaodong; Fukuzumi, Shunichi

    2009-05-13

    The photoinduced electron-transfer process in Disperse Red 1 end-capped poly[9,9-bis(4-diphenylaminophenyl)-2,7-fluorene], a promising material for electronic and optoelectronic devices, is reported here. The charge-separated configuration was found to be long-lived, with a lifetime of up to 2.2 ms in the polar benzonitrile, as inferred from time-resolved absorption measurements.

  8. The 2009 Eclipse of EE Cephei: An Educational and Collaborative Journey

    NASA Astrophysics Data System (ADS)

    Pye, John; Elder, Lauren; Hopkins, Jeff

    2009-05-01

    In December 2008 Jeff Hopkins of the Hopkins Phoenix Observatory (HPO) put out a request for assistance in extracting data from images taken by the AAVSO SRO (Sonoita Research Observatory) of EE Cephei, an 11th magnitude (V) long period (5.6 years) eclipsing binary star system that was due to eclipse in January of 2009. The Hopkins Phoenix Observatory originally planned to do BVRI CCD photometry of EE Cephei for the 2009 eclipse, but equipment and logistical changes at HPO meant the EE Cephei project would not be possible. However, in the fall of 2008 Arne Henden of the AAVSO announced the availability of a remote robotic 16" telescope (the Sonoita Research Observatory) in southern Arizona for use by members of the AAVSO. Jeff Hopkins contacted Arne Henden and arrangements were made to have the EE Cephei star system imaged with BVRI filters beginning in November 2008 and running through February 2009. Image files were archived on the AAVSO web site. Soon after his initial request went out, Jeff Hopkins was contacted by John Pye from Maui Community College, who agreed to help with the project by having one of his students, Lauren Elder, examine the image files and extract EE Cephei and 3 comparison stars flux (ADU) counts for each band. The resulting data were then sent to the Hopkins Phoenix Observatory for data reduction and analysis. The project was a successful joint collaboration with 40 nights of observations for over 300 BVRI data points from 20 November 2008 to 17 February 2009. Light curves for each band as well as color indices were plotted and eclipse contact points were determined. The data were also contributed to the EE Cephei Campaign organized by Cezary Galan at the Centre for Astronomy at Nicolaus Copernicus University in Torun (Poland). Our results are plotted along with those of several dozen other observers from around the world.

  9. e+e- collisions in the multi-TeV region

    SciTech Connect

    Ellis, J.

    1983-05-01

    A leading role in the elucidation of the Standard Model during the last few years has been played by e+e- colliding beam experiments. The e+e- discoveries have been made possible by the cleanliness of the experimental conditions and the ability to tune the centre-of-mass energy with precision to the desired value, thus avoiding less interesting background events. We expect history to repeat itself in the next step of elucidating physics beyond the Standard Model. Just as past e+e- machines such as SPEAR, DORIS and CESR have uncovered physics inaccessible to hadron-hadron collisions with a centre-of-mass energy several times higher, so we feel that future e+e- colliders will provide information that could not be duplicated by hadron colliders with much larger centre-of-mass energies. There is a general consensus that the next interesting energy range is likely to be in the TeV range. It is in this energy range that whatever physics provides and stabilizes the masses of the intermediate vector bosons must be revealed. Unravelling this mass generation mechanism takes us beyond the gauge principle of the Standard Model which has been so triumphantly vindicated in recent months. Therefore we discuss here the capabilities and attributes of an e+e- collider with at least 1 TeV energy per beam. We believe that by enabling an important new energy domain to be explored in detail, such an e+e- collider provides physics opportunities which cannot be paralled by hadron-hadron colliding rings with centre-of-mass energies several times higher. (WHK)

  10. eeDAP: an evaluation environment for digital and analog pathology

    NASA Astrophysics Data System (ADS)

    Gallas, Brandon D.; Cheng, Wei-Chung; Gavrielides, Marios A.; Ivansky, Adam; Keay, Tyler; Wunderlich, Adam; Hipp, Jason; Hewitt, Stephen M.

    2014-03-01

    Purpose: The purpose of this work is to present a platform for designing and executing studies that compare pathologists interpreting histopathology of whole slide images (WSI) on a computer display to pathologists interpreting glass slides on an optical microscope. Methods: Here we present eeDAP, an evaluation environment for digital and analog pathology. The key element in eeDAP is the registration of theWSI to the glass slide. Registration is accomplished through computer control of the microscope stage and a camera mounted on the microscope that acquires images of the real time microscope view. Registration allows for the evaluation of the same regions of interest (ROIs) in both domains. This can reduce or eliminate disagreements that arise from pathologists interpreting different areas and focuses the comparison on image quality. Results: We reduced the pathologist interpretation area from an entire glass slide (≈10-30 mm)2 to small ROIs <(50 um)2. We also made possible the evaluation of individual cells. Conclusions: We summarize eeDAP's software and hardware and provide calculations and corresponding images of the microscope field of view and the ROIs extracted from the WSIs. These calculations help provide a sense of eeDAP's functionality and operating principles, while the images provide a sense of the look and feel of studies that can be conducted in the digital and analog domains. The eeDAP software can be downloaded from code.google.com (project: eeDAP) as Matlab source or as a precompiled stand-alone license-free application.

  11. eeDAP: An Evaluation Environment for Digital and Analog Pathology

    PubMed Central

    Gallas, Brandon D.; Cheng, Wei-Chung; Gavrielides, Marios A.; Ivansky, Adam; Keay, Tyler; Wunderlich, Adam; Hipp, Jason; Hewitt, Stephen M.

    2017-01-01

    Purpose The purpose of this work is to present a platform for designing and executing studies that compare pathologists interpreting histopathology of whole slide images (WSI) on a computer display to pathologists interpreting glass slides on an optical microscope. Methods Here we present eeDAP, an evaluation environment for digital and analog pathology. The key element in eeDAP is the registration of the WSI to the glass slide. Registration is accomplished through computer control of the microscope stage and a camera mounted on the microscope that acquires images of the real time microscope view. Registration allows for the evaluation of the same regions of interest (ROIs) in both domains. This can reduce or eliminate disagreements that arise from pathologists interpreting different areas and focuses the comparison on image quality. Results We reduced the pathologist interpretation area from an entire glass slide (≈10–30 mm)2 to small ROIs <(50 um)2. We also made possible the evaluation of individual cells. Conclusions We summarize eeDAP’s software and hardware and provide calculations and corresponding images of the microscope field of view and the ROIs extracted from the WSIs. These calculations help provide a sense of eeDAP’s functionality and operating principles, while the images provide a sense of the look and feel of studies that can be conducted in the digital and analog domains. The eeDAP software can be downloaded from code.google.com (project: eeDAP) as Matlab source or as a precompiled stand-alone license-free application. PMID:28845079

  12. Beam-beam and electron cloud effects in CEPC/FCC-ee

    NASA Astrophysics Data System (ADS)

    Ohmi, Kazuhito

    2016-11-01

    We discuss beam dynamics issues in CEPC/FCC-ee, especially focusing on the beam-beam and electron cloud effects. Beamstrahlung is strong in extreme high energy collision such as Higgs and top factory. Beam-beam simulations considering beamstrahlung are now ready. Several points of beam-beam effects for FCC-ee are presented. Electron cloud effects are serious for high current positron machine, especially in Z factory that many bunches are stored. Analytical estimate for threshold of electron density and electron build-up for CEPC are presented.

  13. Are “normal hips” being labeled as femoroacetabular impingement due to EE angle?

    PubMed Central

    You, Tian; Yang, Bei; Zhang, Xin-tao; Jiang, Xiao-cheng; Wang, Shuang; Zhang, Wen-tao

    2017-01-01

    Abstract Gluteal muscle contracture (GMC) is a clinical syndrome characterized by gait abnormality and limb dysfunction, as well as secondary deformities of pelvis and femur. Femoroacetabular impingement (FAI) typically could be diagnosed on the basis of computed tomography (CT) such as the equatorial-edge angle (EE angle), but it did not work well in GMC patients. In this study, we retrospected all image data and found small EE angles in GMCs, which meant retroverted acetabulum; however, none of them showed no symptoms and signs of FAI. Therefore, we had reasons to think that, some normal hips with unbalanced hip myodynamia as same as GMCs, may be incorrectly diagnosed as FAI through measuring EE angle only. In consequence, the paper was designed to assess the use of the EE angle in the assessment of FAI in the diagnosis, as described by Werner. Twenty-three patients (46 hips) were collected and calculated with the “equatorial-edge angle” (EE angle) by CT scans. All of them were excluded from FAI. Review of the hips showed a mean EE angle was 12.93°, with a minimum of -3.42° and a maximum of 24.08°. The mean value for males and females were 13.52° and 12.40°, respectively, without statistical significance, although the mean value of left hips and right sides reached 13.32° and 12.54° individually, not having statistical differences neither. There were not any symptoms or signs of FAI in all patients. Thus, the reduced EE angle could suggest the local excessive coverage of the femoral head by the anterior acetabular edge, but might not be a reasonably good predictor of FAI. GMC patient's acetabular deformity mainly manifests as increased retroversion, which may be the anatomical basis for FAI and lead to high risks of the acetabular impingement. However, all patients in this study showed no symptoms and signs of FAI, suggesting that the measurement of EE angle can only be applied to assessing those people with normal hip myodynamia, and the bone

  14. Are "normal hips" being labeled as femoroacetabular impingement due to EE angle?

    PubMed

    You, Tian; Yang, Bei; Zhang, Xin-Tao; Jiang, Xiao-Cheng; Wang, Shuang; Zhang, Wen-Tao

    2017-03-01

    Gluteal muscle contracture (GMC) is a clinical syndrome characterized by gait abnormality and limb dysfunction, as well as secondary deformities of pelvis and femur. Femoroacetabular impingement (FAI) typically could be diagnosed on the basis of computed tomography (CT) such as the equatorial-edge angle (EE angle), but it did not work well in GMC patients. In this study, we retrospected all image data and found small EE angles in GMCs, which meant retroverted acetabulum; however, none of them showed no symptoms and signs of FAI. Therefore, we had reasons to think that, some normal hips with unbalanced hip myodynamia as same as GMCs, may be incorrectly diagnosed as FAI through measuring EE angle only.In consequence, the paper was designed to assess the use of the EE angle in the assessment of FAI in the diagnosis, as described by Werner.Twenty-three patients (46 hips) were collected and calculated with the "equatorial-edge angle" (EE angle) by CT scans. All of them were excluded from FAI.Review of the hips showed a mean EE angle was 12.93°, with a minimum of -3.42° and a maximum of 24.08°. The mean value for males and females were 13.52° and 12.40°, respectively, without statistical significance, although the mean value of left hips and right sides reached 13.32° and 12.54° individually, not having statistical differences neither. There were not any symptoms or signs of FAI in all patients. Thus, the reduced EE angle could suggest the local excessive coverage of the femoral head by the anterior acetabular edge, but might not be a reasonably good predictor of FAI.GMC patient's acetabular deformity mainly manifests as increased retroversion, which may be the anatomical basis for FAI and lead to high risks of the acetabular impingement. However, all patients in this study showed no symptoms and signs of FAI, suggesting that the measurement of EE angle can only be applied to assessing those people with normal hip myodynamia, and the bone deformity and the

  15. 31 CFR 321.8 - Redemption-exchange of Series E and EE savings bonds and savings notes.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... exchange are: (1) Series EE bonds bearing issue dates of January 1, 2003, or earlier, presented no earlier than six months from their issue dates; (2) Series EE bonds bearing issue dates of February 1, 2003, or... redemption-exchange. An agent shall not accept and redeem eligible securities on exchange unless: (1)...

  16. 31 CFR 321.8 - Redemption-exchange of Series E and EE savings bonds and savings notes.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false Redemption-exchange of Series E and EE... STATES SAVINGS NOTES (FREEDOM SHARES) Scope of Authority § 321.8 Redemption-exchange of Series E and EE... payment of eligible securities presented for redemption in exchange for Series HH bonds....

  17. 31 CFR 321.8 - Redemption-exchange of Series E and EE savings bonds and savings notes.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Redemption-exchange of Series E and EE... STATES SAVINGS NOTES (FREEDOM SHARES) Scope of Authority § 321.8 Redemption-exchange of Series E and EE... payment of eligible securities presented for redemption in exchange for Series HH bonds....

  18. A coordinated set of ecosystem research platforms open to international research in ecotoxicology, AnaEE-France.

    PubMed

    Mougin, Christian; Azam, Didier; Caquet, Thierry; Cheviron, Nathalie; Dequiedt, Samuel; Le Galliard, Jean-François; Guillaume, Olivier; Houot, Sabine; Lacroix, Gérard; Lafolie, François; Maron, Pierre-Alain; Michniewicz, Radika; Pichot, Christian; Ranjard, Lionel; Roy, Jacques; Zeller, Bernd; Clobert, Jean; Chanzy, André

    2015-10-01

    The infrastructure for Analysis and Experimentation on Ecosystems (AnaEE-France) is an integrated network of the major French experimental, analytical, and modeling platforms dedicated to the biological study of continental ecosystems (aquatic and terrestrial). This infrastructure aims at understanding and predicting ecosystem dynamics under global change. AnaEE-France comprises complementary nodes offering access to the best experimental facilities and associated biological resources and data: Ecotrons, seminatural experimental platforms to manipulate terrestrial and aquatic ecosystems, in natura sites equipped for large-scale and long-term experiments. AnaEE-France also provides shared instruments and analytical platforms dedicated to environmental (micro) biology. Finally, AnaEE-France provides users with data bases and modeling tools designed to represent ecosystem dynamics and to go further in coupling ecological, agronomical, and evolutionary approaches. In particular, AnaEE-France offers adequate services to tackle the new challenges of research in ecotoxicology, positioning its various types of platforms in an ecologically advanced ecotoxicology approach. AnaEE-France is a leading international infrastructure, and it is pioneering the construction of AnaEE (Europe) infrastructure in the field of ecosystem research. AnaEE-France infrastructure is already open to the international community of scientists in the field of continental ecotoxicology.

  19. 31 CFR 351.7 - May Series EE savings bonds be called for redemption prior to final maturity?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... for redemption prior to final maturity? 351.7 Section 351.7 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment... redemption prior to final maturity? The Secretary of the Treasury may not call Series EE bonds for redemption...

  20. 31 CFR 351.7 - May Series EE savings bonds be called for redemption prior to final maturity?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... for redemption prior to final maturity? 351.7 Section 351.7 Money and Finance: Treasury Regulations... DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment... redemption prior to final maturity? The Secretary of the Treasury may not call Series EE bonds for redemption...

  1. A novel enzyme-linked immunosorbent assay for ethynylestradiol using a long-chain biotinylated EE2 derivative.

    PubMed

    Schneider, Christian; Schöler, Heinz F; Schneider, Rudolf J

    2004-04-01

    Ethynylestradiol (EE2) is one of the most potent endocrine disrupting compounds capable to induce estrogenic effects even at trace level concentrations in the aquatic environment. Methods for detecting EE2 in such concentrations are generally based on GC or HPLC coupled to at least one mass spectrometer. Another approach are immunoassays and sensor systems but for most designs, derivatives of EE2 are required (e.g. for coupling to carrier proteins, enzyme or fluorescent labels, etc.). Here we present the straightforward synthesis and complete characterization of a new long-chain biotinylated EE2 derivative. The new EE2 derivative is used as tracer in a direct competitive enzyme-linked immunosorbent assay (ELISA) for the determination of EE2. With pure water, the limit of detection (LOD, signal-to-noise ratio, S/N = 3) and the test midpoint were found to be 14 and 136 ng l(-1), respectively. Cross reactivity (CR) was tested for 10 endogenous steroids and the BSA-conjugate used for immunization, as well as a synthetic precursor of the conjugate. Among the naturally occurring compounds, CR was determined to be maximum for metabolites of EE2 conjugated at ring-position 3 (17% and 37% for 3-glucuronide and 3-sulphate, respectively). Assay stability was tested against humic substances and organic solvents. Increasing amounts of organic solvents in the sample caused a clear decrease in sensitivity, presence of humic substances lead to an overestimation of EE2.

  2. Autophosphorylation is crucial for CDK-activating kinase (Ee;CDKF;1) activity and complex formation in leafy spurge.

    PubMed

    Jia, Ying; Anderson, James V; Chao, Wun S

    2011-02-01

    Ee;CDKF;1 protein is a leafy spurge (Euphorbia esula) CDK-activating kinase that is involved in a phosphorylation cascade linked to early stages of cell cycle progression. Yeast two-hybrid screening performed using Ee;CDKF;1 as a bait indicated that one of the interacting proteins was Ee;CDKF;1. Protein-protein interaction of Ee;CDKF;1 was further confirmed by yeast two-hybrid interaction and in vitro pull-down assays. Gel exclusion chromatography and/or native PAGE showed that GST-CDKF;1, MBP-CDKF;1, GST-CDKF;1 devoid of GST, and endogenous Ee;CDKF;1 were capable of forming homo protein complexes which are in dimer, trimer, and/or higher molecular-mass complex in its native state. In addition, Ee;CDKF;1 complexes were autophosphorylated and able to phosphorylate CDK. Moreover, mutant forms of Ee;CDKF;1 (106G/A, 166K/A), which lost autophosphorylation capability completely, were unable to form homo protein complexes in their native state. The result thus demonstrated that autophosphorylation of Ee;CDKF;1 is crucial for both kinase activity and complex formation. Published by Elsevier Ireland Ltd.

  3. 31 CFR 351.68 - Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (TINs) required for registration of book-entry Series EE savings bonds? 351.68 Section 351.68 Money and... Savings Bonds § 351.68 Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE savings bonds? The TIN of each person named in the registration is required to purchase a...

  4. 31 CFR 351.68 - Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (TINs) required for registration of book-entry Series EE savings bonds? 351.68 Section 351.68 Money and... Savings Bonds § 351.68 Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE savings bonds? The TIN of each person named in the registration is required to purchase a...

  5. 31 CFR 351.68 - Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (TINs) required for registration of book-entry Series EE savings bonds? 351.68 Section 351.68 Money and... Savings Bonds § 351.68 Are taxpayer identification numbers (TINs) required for registration of book-entry Series EE savings bonds? The TIN of each person named in the registration is required to purchase a...

  6. 31 CFR 351.20 - What is the investment yield (interest) during the original maturity period of Series EE savings...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., 1980, through April 1, 1995? 351.20 Section 351.20 Money and Finance: Treasury Regulations Relating to... Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.20 What is... issue dates from January 1, 1980, through April 1, 1995? The redemption value of a bond on a given...

  7. Novel Antimicrobial Peptides EeCentrocins 1, 2 and EeStrongylocin 2 from the Edible Sea Urchin Echinus esculentus Have 6-Br-Trp Post-Translational Modifications

    PubMed Central

    Solstad, Runar Gjerp; Li, Chun; Isaksson, Johan; Johansen, Jostein; Svenson, Johan; Stensvåg, Klara; Haug, Tor

    2016-01-01

    The global problem of microbial resistance to antibiotics has resulted in an urgent need to develop new antimicrobial agents. Natural antimicrobial peptides are considered promising candidates for drug development. Echinoderms, which rely on innate immunity factors in the defence against harmful microorganisms, are sources of novel antimicrobial peptides. This study aimed to isolate and characterise antimicrobial peptides from the Edible sea urchin Echinus esculentus. Using bioassay-guided purification and cDNA cloning, three antimicrobial peptides were characterised from the haemocytes of the sea urchin; two heterodimeric peptides and a cysteine-rich peptide. The peptides were named EeCentrocin 1 and 2 and EeStrongylocin 2, respectively, due to their apparent homology to the published centrocins and strongylocins isolated from the green sea urchin Strongylocentrotus droebachiensis. The two centrocin-like peptides EeCentrocin 1 and 2 are intramolecularly connected via a disulphide bond to form a heterodimeric structure, containing a cationic heavy chain of 30 and 32 amino acids and a light chain of 13 amino acids. Additionally, the light chain of EeCentrocin 2 seems to be N-terminally blocked by a pyroglutamic acid residue. The heavy chains of EeCentrocins 1 and 2 were synthesised and shown to be responsible for the antimicrobial activity of the natural peptides. EeStrongylocin 2 contains 6 cysteines engaged in 3 disulphide bonds. A fourth peptide (Ee4635) was also discovered but not fully characterised. Using mass spectrometric and NMR analyses, EeCentrocins 1 and 2, EeStrongylocin 2 and Ee4635 were all shown to contain post-translationally brominated Trp residues in the 6 position of the indole ring. PMID:27007817

  8. Novel Antimicrobial Peptides EeCentrocins 1, 2 and EeStrongylocin 2 from the Edible Sea Urchin Echinus esculentus Have 6-Br-Trp Post-Translational Modifications.

    PubMed

    Solstad, Runar Gjerp; Li, Chun; Isaksson, Johan; Johansen, Jostein; Svenson, Johan; Stensvåg, Klara; Haug, Tor

    2016-01-01

    The global problem of microbial resistance to antibiotics has resulted in an urgent need to develop new antimicrobial agents. Natural antimicrobial peptides are considered promising candidates for drug development. Echinoderms, which rely on innate immunity factors in the defence against harmful microorganisms, are sources of novel antimicrobial peptides. This study aimed to isolate and characterise antimicrobial peptides from the Edible sea urchin Echinus esculentus. Using bioassay-guided purification and cDNA cloning, three antimicrobial peptides were characterised from the haemocytes of the sea urchin; two heterodimeric peptides and a cysteine-rich peptide. The peptides were named EeCentrocin 1 and 2 and EeStrongylocin 2, respectively, due to their apparent homology to the published centrocins and strongylocins isolated from the green sea urchin Strongylocentrotus droebachiensis. The two centrocin-like peptides EeCentrocin 1 and 2 are intramolecularly connected via a disulphide bond to form a heterodimeric structure, containing a cationic heavy chain of 30 and 32 amino acids and a light chain of 13 amino acids. Additionally, the light chain of EeCentrocin 2 seems to be N-terminally blocked by a pyroglutamic acid residue. The heavy chains of EeCentrocins 1 and 2 were synthesised and shown to be responsible for the antimicrobial activity of the natural peptides. EeStrongylocin 2 contains 6 cysteines engaged in 3 disulphide bonds. A fourth peptide (Ee4635) was also discovered but not fully characterised. Using mass spectrometric and NMR analyses, EeCentrocins 1 and 2, EeStrongylocin 2 and Ee4635 were all shown to contain post-translationally brominated Trp residues in the 6 position of the indole ring.

  9. Resource Materials To Support Your Environmental Education Efforts. EE-TIPS (Environmental Education Technical Information Packages).

    ERIC Educational Resources Information Center

    North American Association for Environmental Education, Troy, OH.

    This collection gathers together over 50 high-quality materials to support environmental education (EE) curricula. Because each community has unique environmental and educational needs, the guide includes a broad set of educational materials that can be adapted to a variety of settings. The materials can be used to supplement educational…

  10. 31 CFR 351.8 - When is interest payable on Series EE savings bonds?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false When is interest payable on Series EE savings bonds? 351.8 Section 351.8 Money and Finance: Treasury Regulations Relating to Money and Finance... and becomes part of the redemption value. Interest earnings are payable upon redemption....

  11. 31 CFR 351.8 - When is interest payable on Series EE savings bonds?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false When is interest payable on Series EE savings bonds? 351.8 Section 351.8 Money and Finance: Treasury Regulations Relating to Money and Finance... and becomes part of the redemption value. Interest earnings are payable upon redemption....

  12. 77 FR 213 - United States Savings Bonds, Series EE and I

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-04

    ... Federal Regulations is sold by the Superintendent of Documents. #0;Prices of new books are listed in the..., Fiscal Service, Treasury. ACTION: Final rule. SUMMARY: This rule increases the amount of book-entry... the amount of book- entry Series EE and Series I savings bonds a person may acquire each year....

  13. Hadronic cross sections measurement with the SND detector at VEPP-2000 e+e- collider

    NASA Astrophysics Data System (ADS)

    Achasov, M. N.; Barnyakov, A. Yu; Barnyakov, M. Yu; Beloborodov, K. I.; Berdyugin, A. V.; Berkaev, D. E.; Blinov, V. E.; Bobrovnikov, V. S.; Bogdanchikov, A. G.; Botov, A. A.; Buzykaev, A. R.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Kardapoltsev, L. V.; Kirpotin, A. N.; Kononov, S. A.; Koop, I. A.; Korol, A. A.; Koshuba, S. V.; Kovrizhin, D. P.; Kravchenko, D. P.; Kupich, A. S.; Lysenko, A. P.; Martin, K. A.; Obrazovsky, A. E.; Onuchin, A. P.; Pakhtusova, E. V.; Kharlamov, A. G.; Romanov, A. L.; Senchenko, A. I.; Shatunov, P. Yu; Shatunov, Yu M.; Shtol, D. A.; Shwartz, D. B.; Silagadze, Z. K.; Skrinsky, A. N.; Surin, I. K.; Tikhonov, Yu A.; Usov, Yu V.; Vasiljev, A. V.; Zemlyansky, I. M.

    2015-11-01

    The cross sections {{{e}}}+{{{e}}}-\\to {π }+{π }-, 3π , 4π , ω {π }0, K+K-, η {π }+{π }-, η γ , {{p}}\\bar{{{p}}},{{n}}\\bar{{{n}}} have been measured with the spherical neutral detector at the VEPP-2000 e+e- collider in the energy range from 0.3 to 2.0 GeV.

  14. 31 CFR 351.4 - In what form are Series EE savings bonds issued?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false In what form are Series EE savings bonds issued? 351.4 Section 351.4 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED...

  15. Transforming e-Learning into ee-Learning: The Centrality of Sociocultural Participation

    ERIC Educational Resources Information Center

    Schneider, Sandra B.; Evans, Michael A.

    2008-01-01

    Traditional e-learning efforts use information communication technologies to create and support educational opportunities that are not constrained by temporal and spatial considerations. The focus of ee-learning is to couple e-learning's approach with experiential education models that employ service-learning methodologies and with…

  16. Standards Setting and Federal Information Policy: The Escrowed Encryption Standard (EES).

    ERIC Educational Resources Information Center

    Gegner, Karen E.; Veeder, Stacy B.

    1994-01-01

    Examines the standards process used for developing the Escrowed Encryption Standard (EES) and its possible impact on national communication and information policies. Discusses the balance between national security and law enforcement concerns versus privacy rights and economic competitiveness in the area of foreign trade and export controls. (67…

  17. Perspectives from Emerging Researchers: What Next in EE/SE Research?

    ERIC Educational Resources Information Center

    Aguayo, Claudio; Higgins, Blanche; Field, Ellen; Nicholls, Jennifer; Pudin, Susan; Tiu, Sangion Appiee; Osborn, Maia; Hashemzadeh, Farshad; Lubuulwa, Kevin Kezabu; Boulet, Mark; Christie, Belinda A.; Mah, Jeremy

    2016-01-01

    Following the inaugural Australian Association for Environmental Education (AAEE) research symposium in November 2014, we--a group of emerging researchers in Environmental Education/Sustainability Education (EE/SE)--commenced an online collaboration to identify and articulate our responses to the main themes of the symposium. Identifying as…

  18. Standards Setting and Federal Information Policy: The Escrowed Encryption Standard (EES).

    ERIC Educational Resources Information Center

    Gegner, Karen E.; Veeder, Stacy B.

    1994-01-01

    Examines the standards process used for developing the Escrowed Encryption Standard (EES) and its possible impact on national communication and information policies. Discusses the balance between national security and law enforcement concerns versus privacy rights and economic competitiveness in the area of foreign trade and export controls. (67…

  19. Correction to ATel 10128: Spectral Comparison Object SN 1999em -> SN 1999ee

    NASA Astrophysics Data System (ADS)

    Wang, Xiaofeng

    2017-02-01

    We report a correction to the spectroscopic classification announced in ATel #10128. The spectral comparison shows that SN 2017bke is similar to type Ia supernova SN 1999ee (which was incorrectly typed as SN 1999em) at t = -7 days from the maximum light. We apologize for any confusion caused by this typo error.

  20. Perspectives from Emerging Researchers: What Next in EE/SE Research?

    ERIC Educational Resources Information Center

    Aguayo, Claudio; Higgins, Blanche; Field, Ellen; Nicholls, Jennifer; Pudin, Susan; Tiu, Sangion Appiee; Osborn, Maia; Hashemzadeh, Farshad; Lubuulwa, Kevin Kezabu; Boulet, Mark; Christie, Belinda A.; Mah, Jeremy

    2016-01-01

    Following the inaugural Australian Association for Environmental Education (AAEE) research symposium in November 2014, we--a group of emerging researchers in Environmental Education/Sustainability Education (EE/SE)--commenced an online collaboration to identify and articulate our responses to the main themes of the symposium. Identifying as…

  1. Transforming e-Learning into ee-Learning: The Centrality of Sociocultural Participation

    ERIC Educational Resources Information Center

    Schneider, Sandra B.; Evans, Michael A.

    2008-01-01

    Traditional e-learning efforts use information communication technologies to create and support educational opportunities that are not constrained by temporal and spatial considerations. The focus of ee-learning is to couple e-learning's approach with experiential education models that employ service-learning methodologies and with…

  2. Resource Materials To Support Your Environmental Education Efforts. EE-TIPS (Environmental Education Technical Information Packages).

    ERIC Educational Resources Information Center

    North American Association for Environmental Education, Troy, OH.

    This collection gathers together over 50 high-quality materials to support environmental education (EE) curricula. Because each community has unique environmental and educational needs, the guide includes a broad set of educational materials that can be adapted to a variety of settings. The materials can be used to supplement educational…

  3. The effect of diketopyrrolopyrrole (DPP) group inclusion in p-cyanophenyl end-capped oligothiophene used as a dopant in P3HT:PCBM BHJ solar cells.

    PubMed

    Manninen, V M; Heiskanen, J P; Pankov, D; Kastinen, T; Hukka, T I; Hormi, O E O; Lemmetyinen, H J

    2014-10-01

    In this work, two p-cyanophenyl end-capped oligothiophenes, and , were compared as dopants in the P3HT:PC60BM bulk heterojunction (BHJ) layer of inverted organic solar cells. Inclusion of significantly increased the average efficiency of the solar cells, while the increase using doping in the cell efficiency was minor. In the BHJ photoactive layer, the dopant molecules are close to and interact with P3HT and PC60BM molecules. Intra- and intermolecular interactions of the dopant molecules with P3HT and PC60BM were studied in chloroform solutions. Energy or electron transfer from the dopant molecules to PC60BM takes place as the fluorescence emission intensity and lifetime of the dopant molecules decreased in the presence of PC60BM. In the case of doping with , doped cells had higher absorbance than the non-doped reference cell and doping broadens the cell absorption to the near IR-region. Thus, the dopant molecules act as additional light absorbers in the photoactive layer and transfer energy or electrons to PC60BM, which increases the short circuit current and power conversion efficiency of the cell. Also, the emission of the cells doped with decreased when compared to that of the reference cell. In this case, P3HT can give electrons or energy to dopant molecules and the cell current and efficiency are further increased.

  4. Self-assemblies of γ-CDs with pentablock copolymers PMA-PPO-PEO-PPO-PMA and endcapping via atom transfer radical polymerization of 2-methacryloyloxyethyl phosphorylcholine

    PubMed Central

    Lin, Jing; Kong, Tao; Ye, Lin; Zhang, Ai-ying

    2015-01-01

    Summary Pentablock copolymers PMA-PPO-PEO-PPO-PMA synthesized via atom transfer radical polymerization (ATRP) were self-assembled with varying amounts of γ-CDs to prepare poly(pseudorotaxanes) (PPRs). When the concentration of γ-CDs was lower, the central PEO segment served as a shell of the micelles and was preferentially bent to pass through the γ-CD cavity to construct double-chain-stranded tight-fit PPRs characterized by a channel-like crystal structure. With an increase in the amount of γ-CDs added, they began to accommodate the poly(methyl acrylate) (PMA) segments dissociated from the core of the micelles. When more γ-CDs were threaded and slipped over the segments, the γ-CDs were randomly distributed along the pentablock copolymer chain to generate single-chain-stranded loose-fit PPRs and showed no characteristic channel-like crystal structure. All the self-assembly processes of the pentablock copolymers resulted in the formation of hydrogels. After endcapping via in situ ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC), these single-chain-stranded loose-fit PPRs were transformed into conformational identical polyrotaxanes (PRs). The structures of the PPRs and PRs were characterized by means of 1H NMR, GPC, 13C CP/MAS NMR, 2D 1H NOESY NMR, FTIR, WXRD, TGA and DSC analyses. PMID:26732122

  5. Analysis of high mass-to-charge ions in a quadrupole ion trap mass spectrometer via an end-cap quadrupolar direct current downscan.

    PubMed

    Prentice, Boone M; McLuckey, Scott A

    2012-09-04

    A method for performing mass-selective instability analysis in a three-dimensional (3-D) quadrupole ion trap is described that involves scanning a direct current (dc) voltage applied to the end-cap electrodes while holding the radio frequency (rf) potential at a fixed value. Rather than eject at the ß(z) = 1 instability line by ramping the amplitude of the drive rf potential applied to the ring electrode, as with the original mass-selective instability scan, this approach effects ion ejection along the ß(z) = 0 instability line in a process identical in principle (though it varies in its method of implementation) to the previously termed "downscan" ( Todd , J. F. J. ; Penman , A. D. ; Smith , R. D. Int. J. Mass Spectrom. Ion Processes 1991 , 106 , 117 - 135 ). A linear scan of the dc amplitude results in a nonlinear mass scale, unlike the conventional resonance ejection scan with a linear scan of the rf amplitude, and the ejection of ions in the direction of high mass-to-charge (m/z) to low m/z. However, the downscan offers some advantages over the traditional rf scan for ions of high m/z values. These include a larger scannable mass range, as well as the opportunity for improved resolution at high mass. These characteristics are demonstrated with ions of m/z 10(4)-10(5).

  6. Multielement determination of cadmium and lead in urine by simultaneous electrothermal atomic absorption spectrometry with an end-capped graphite tube.

    PubMed

    Correia, Paulo R M; Nomura, Cassiana S; Oliveira, Pedro V

    2003-11-01

    A method for the multielement determination of cadmium and lead in urine is proposed by simultaneous electrothermal atomic absorption spectrometry (SIMAAS) with an end-capped transversely heated graphite atomizer (EC-THGA). The best conditions for cadmium and lead determination were obtained in the presence of NH4H2PO4 as a chemical modifier, using 500 degrees C and 1800 degrees C as the pyrolysis and atomization temperatures, respectively. Urine samples were diluted 1 + 4 directly in autosampler cups with a mixture of 0.125% (w/v) Triton X-100 + 2.5% (v/v) HNO3 + 0.31% (w/v) NH4H2PO4. The optimized heating program was carried out in 57 s, and the instrument calibration was done with aqueous reference solutions. The use of EC-THGA increased the sensitivity of cadmium and lead by 14% and 25%, respectively. The detection limits (n = 20, 3delta) were 0.03 microg L(-1) (0.36 pg) for cadmium and 0.57 microg L(-1) (6.8 pg) for lead. The performance of EC-THGA was acceptable up to 500 heating cycles. The reliability of the entire procedure was checked with the analysis of a lyophilized urine certified reference material. The found concentrations were in agreement with the recommended values (95% confidence level).

  7. Effect of solvent strength and temperature on retention for a polar-endcapped, octadecylsiloxane-bonded silica stationary phase with methanol-water mobile phases.

    PubMed

    Kiridena, Waruna; Poole, Colin F; Koziol, Wladyslaw W

    2004-12-10

    Synergi Hydro-RP is a new type of polar-endcapped, octadecylsiloxane-bonded silica packing for reversed-phase liquid chromatography. Its retention properties as a function of solvent strength and temperature are evaluated from the change in retention factors over the composition range (0-70% v/v methanol) and temperature range (25-65 degrees C) using the solvation parameter model and response surface methodologies. The main factors that affect retention are solute size and hydrogen-bond basicity, with minor contributions from solute hydrogen-bond acidity, dipole-type and electron lone pair interactions. Within the easily accessible range for both temperature and solvent strength, the ability to change selectivity is much greater for solvent strength than temperature. Also, a significant portion of the effect of increasing temperature is to reduce retention without changing selectivity. Response surfaces for the system constants are smooth and non-linear, except for cavity formation and dispersion interactions (v system constant), which is linear. Modeling of the response surfaces suggests that solvent strength and temperature are not independent factors for the b, s and e system constants and for the model intercept (c term).

  8. Self-assemblies of γ-CDs with pentablock copolymers PMA-PPO-PEO-PPO-PMA and endcapping via atom transfer radical polymerization of 2-methacryloyloxyethyl phosphorylcholine.

    PubMed

    Lin, Jing; Kong, Tao; Ye, Lin; Zhang, Ai-Ying; Feng, Zeng-Guo

    2015-01-01

    Pentablock copolymers PMA-PPO-PEO-PPO-PMA synthesized via atom transfer radical polymerization (ATRP) were self-assembled with varying amounts of γ-CDs to prepare poly(pseudorotaxanes) (PPRs). When the concentration of γ-CDs was lower, the central PEO segment served as a shell of the micelles and was preferentially bent to pass through the γ-CD cavity to construct double-chain-stranded tight-fit PPRs characterized by a channel-like crystal structure. With an increase in the amount of γ-CDs added, they began to accommodate the poly(methyl acrylate) (PMA) segments dissociated from the core of the micelles. When more γ-CDs were threaded and slipped over the segments, the γ-CDs were randomly distributed along the pentablock copolymer chain to generate single-chain-stranded loose-fit PPRs and showed no characteristic channel-like crystal structure. All the self-assembly processes of the pentablock copolymers resulted in the formation of hydrogels. After endcapping via in situ ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC), these single-chain-stranded loose-fit PPRs were transformed into conformational identical polyrotaxanes (PRs). The structures of the PPRs and PRs were characterized by means of (1)H NMR, GPC, (13)C CP/MAS NMR, 2D (1)H NOESY NMR, FTIR, WXRD, TGA and DSC analyses.

  9. V-ATPase activity in the TGN/EE is required for exocytosis and recycling in Arabidopsis.

    PubMed

    Luo, Yu; Scholl, Stefan; Doering, Anett; Zhang, Yi; Irani, Niloufer G; Rubbo, Simone Di; Neumetzler, Lutz; Krishnamoorthy, Praveen; Van Houtte, Isabelle; Mylle, Evelien; Bischoff, Volker; Vernhettes, Samantha; Winne, Johan; Friml, Jiří; Stierhof, York-Dieter; Schumacher, Karin; Persson, Staffan; Russinova, Eugenia

    2015-07-06

    In plants, vacuolar H(+)-ATPase (V-ATPase) activity acidifies both the trans-Golgi network/early endosome (TGN/EE) and the vacuole. This dual V-ATPase function has impeded our understanding of how the pH homeostasis within the plant TGN/EE controls exo- and endocytosis. Here, we show that the weak V-ATPase mutant deetiolated3 (det3) displayed a pH increase in the TGN/EE, but not in the vacuole, strongly impairing secretion and recycling of the brassinosteroid receptor and the cellulose synthase complexes to the plasma membrane, in contrast to mutants lacking tonoplast-localized V-ATPase activity only. The brassinosteroid insensitivity and the cellulose deficiency defects in det3 were tightly correlated with reduced Golgi and TGN/EE motility. Thus, our results provide strong evidence that acidification of the TGN/EE, but not of the vacuole, is indispensable for functional secretion and recycling in plants.

  10. Proceedings, High-Precision $\\alpha_s$ Measurements from LHC to FCC-ee

    SciTech Connect

    d'Enterria, David; Skands, Peter Z.

    2015-01-01

    This document provides a writeup of all contributions to the workshop on "High precision measurements of $\\alpha_s$: From LHC to FCC-ee" held at CERN, Oct. 12--13, 2015. The workshop explored in depth the latest developments on the determination of the QCD coupling $\\alpha_s$ from 15 methods where high precision measurements are (or will be) available. Those include low-energy observables: (i) lattice QCD, (ii) pion decay factor, (iii) quarkonia and (iv) $\\tau$ decays, (v) soft parton-to-hadron fragmentation functions, as well as high-energy observables: (vi) global fits of parton distribution functions, (vii) hard parton-to-hadron fragmentation functions, (viii) jets in $e^\\pm$p DIS and $\\gamma$-p photoproduction, (ix) photon structure function in $\\gamma$-$\\gamma$, (x) event shapes and (xi) jet cross sections in $e^+e^-$ collisions, (xii) W boson and (xiii) Z boson decays, and (xiv) jets and (xv) top-quark cross sections in proton-(anti)proton collisions. The current status of the theoretical and experimental uncertainties associated to each extraction method, the improvements expected from LHC data in the coming years, and future perspectives achievable in $e^+e^-$ collisions at the Future Circular Collider (FCC-ee) with $\\cal{O}$(1--100 ab$^{-1}$) integrated luminosities yielding 10$^{12}$ Z bosons and jets, and 10$^{8}$ W bosons and $\\tau$ leptons, are thoroughly reviewed. The current uncertainty of the (preliminary) 2015 strong coupling world-average value, $\\alpha_s(m_Z)$ = 0.1177 $\\pm$ 0.0013, is about 1\\%. Some participants believed this may be reduced by a factor of three in the near future by including novel high-precision observables, although this opinion was not universally shared. At the FCC-ee facility, a factor of ten reduction in the $\\alpha_s$ uncertainty should be possible, mostly thanks to the huge Z and W data samples available.

  11. Long-term EEJ variations by using the improved EE-index

    NASA Astrophysics Data System (ADS)

    Fujimoto, A.; Uozumi, T.; Abe, Sh.; Matsushita, H.; Imajo, Sh.; Ishitsuka, J. K.; Yoshikawa, A.

    2016-03-01

    In 2008, International Center for Space Weather Science and Education, Kyushu University (ICSWSE) proposed the EE-index, which is an index to monitor the equatorial geomagnetic phenomena. EE-index has been improved with the development of the MAGnetic Data Acquisition System and the Circum-pan Pacific Magnetometer Network (MAGDAS/CPMN) and the enormous archive of MAGDAS/CPMN data over 10 years since the initial article. Using the improved EE-index, we examined the solar cycle variation of equatorial electrojet (EEJ) by the time series analysis for EUEL (one part of EE-index) at Ancon in Peru and the solar activity from September 18, 1998 to March 31, 2015. We found that the long-term variation of daily EEJ peak intensity has a trend similar to that of F10.7 (the solar activity). The power spectrum of the daily EEJ peak has clearly two dominant peaks throughout the analysis interval: 14.5 days and 180 days (semi-annual). The solar cycle variation of daily EEJ peak correlates well with that of F10.7 (the correlation coefficient 0.99). We conclude that the daily EEJ peak intensity is roughly determined as the summation of the long-period trend of the solar activity resulting from the solar cycle and day-to-day variations caused by various sources such as lunar tides, geometric effects, magnetospheric phenomena and atmospheric phenomena. This work presents the primary evidence for solar cycle variations of EEJ on the long-term study of the EE-index

  12. Photocatalytic degradation of 17α-ethinylestradiol (EE2) in the presence of TiO2-doped zeolite.

    PubMed

    Pan, Zhong; Stemmler, Elizabeth A; Cho, Hong Je; Fan, Wei; LeBlanc, Lawrence A; Patterson, Howard H; Amirbahman, Aria

    2014-08-30

    Current design limitations and ineffective remediation techniques in wastewater treatment plants have led to concerns about the prevalence of pharmaceutical and personal care products (PPCPs) in receiving waters. A novel photocatalyst, TiO2-doped low-silica X zeolite (TiO2-LSX), was used to study the degradation of the pharmaceutical compound, 17α-ethinylestradiol (EE2). The catalyst was synthesized and characterized using XRD, BET surface analysis, SEM-EDAX, and ICP-OES. The effects of different UV light intensities, initial EE2 concentrations, and catalyst dosages on the EE2 removal efficiency were studied. A higher EE2 removal efficiency was attained with UV-TiO2-LSX when compared with UV-TiO2 or UV alone. The EE2 degradation process followed pseudo-first-order kinetics. A comprehensive empirical model was developed to describe the EE2 degradation kinetics under different conditions using multiple linear regression analysis. The EE2 degradation mechanism was proposed based on molecular calculations, identification of photoproducts using HPLC-MS/MS, and reactive species quenching experiments; the results showed that oxidative degradation pathways initiated by hydroxyl radicals were predominant. This novel TiO2-doped zeolite system provides a promising application for the UV disinfection process in wastewater treatment plants.

  13. Clinical outcomes of chronic kidney disease patients treated with everolimus-eluting stents (EES) and paclitaxel-eluting stents (PES).

    PubMed

    Kitasato, Lisa; Shimohama, Takao; Ikeda, Yuki; Namba, Sayaka; Hashikata, Takehiro; Kameda, Ryo; Sato, Nobuhiro; Takeuchi, Ichiro; Yamaoka-Tojo, Minako; Tojo, Taiki; Ako, Junya

    2015-05-01

    The target lesion revascularization of paclitaxel-eluting stents (PES) has been reported to be lower than that of sirolimus-eluting stents in patients on hemodialysis (HD). However, the comparison of PES and second generation drug-eluting stents in CKD patients has not been fully investigated. We compared clinical outcomes of everolimus-eluting stents (EES) and PES in CKD patients. Hundred and forty seven CKD patients (eGFR<60mLmin(-1)1.73m(-2)) treated with PES (n=74, from May 2007 to December 2009) and EES (n=73, from January 2010 to January 2013) were enrolled in the study. Major adverse cardiac events (MACEs) were defined as death, non-fatal myocardial infarction, and ischemia driven target lesion revascularization. The incidence of 36-month MACE was significantly lower in EES, non-HD group compared to PES, non HD group (0% in EES group and 13.5% in PES group, respectively, P<0.01). There was no significant difference in MACE between EES and PES in HD patients (5.4% in PES group and 5.5% in EES group, P=0.98). In multivariate analysis, PES group and PES ISR were independent factors for worse incidence of MACE. In CKD patients, PES was associated with worse clinical outcomes in non-HD patients as compared with EES. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  14. 10 CFR 905.17 - What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report) alternative? 905.17 Section 905.17 Energy DEPARTMENT OF ENERGY ENERGY... energy efficiency and/or renewable energy report (EE/RE report) alternative? (a) Requests to submit an EE...

  15. 10 CFR 905.17 - What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 4 2012-01-01 2012-01-01 false What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report) alternative? 905.17 Section 905.17 Energy DEPARTMENT OF ENERGY ENERGY... energy efficiency and/or renewable energy report (EE/RE report) alternative? (a) Requests to submit an EE...

  16. 10 CFR 905.17 - What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report) alternative? 905.17 Section 905.17 Energy DEPARTMENT OF ENERGY ENERGY... energy efficiency and/or renewable energy report (EE/RE report) alternative? (a) Requests to submit an EE...

  17. 10 CFR 905.17 - What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report) alternative? 905.17 Section 905.17 Energy DEPARTMENT OF ENERGY ENERGY... energy efficiency and/or renewable energy report (EE/RE report) alternative? (a) Requests to submit an EE...

  18. 10 CFR 905.17 - What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false What are the requirements for the energy efficiency and/or renewable energy report (EE/RE report) alternative? 905.17 Section 905.17 Energy DEPARTMENT OF ENERGY ENERGY... energy efficiency and/or renewable energy report (EE/RE report) alternative? (a) Requests to submit an EE...

  19. 40 CFR 180.1126 - Codlure, (E,E)-8,10-Dodecadien-1-ol; exemption from the requirement of a tolerance.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Codlure, (E,E)-8,10-Dodecadien-1-ol... RESIDUES IN FOOD Exemptions From Tolerances § 180.1126 Codlure, (E,E)-8,10-Dodecadien-1-ol; exemption from... the insect pheromone codlure, (E,E)-8,10-dodecadien-1-ol, on all raw agricultural commodities...

  20. 31 CFR 363.52 - What is the principal amount of book-entry Series EE and Series I savings bonds that I may...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...-entry Series EE and Series I savings bonds that I may acquire in one year? 363.52 Section 363.52 Money... of book-entry Series EE and Series I savings bonds that I may acquire in one year? (a) The principal... Series EE savings bonds and $10,000 for Series I savings bonds. (b) Bonds purchased or transferred...

  1. 31 CFR 363.52 - What is the principal amount of book-entry Series EE and Series I savings bonds that I may...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...-entry Series EE and Series I savings bonds that I may acquire in one year? 363.52 Section 363.52 Money... of book-entry Series EE and Series I savings bonds that I may acquire in one year? (a) The principal... Series EE savings bonds and $10,000 for Series I savings bonds. (b) Bonds purchased or transferred...

  2. 31 CFR 351.82 - Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of Series EE savings bonds in a chain letter scheme? 351.82 Section 351.82 Money and Finance... BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.82 Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?...

  3. 31 CFR 363.52 - What is the principal amount of book-entry Series EE and Series I savings bonds that I may...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...-entry Series EE and Series I savings bonds that I may acquire in one year? 363.52 Section 363.52 Money... of book-entry Series EE and Series I savings bonds that I may acquire in one year? (a) The principal... Series EE savings bonds and $10,000 for Series I savings bonds. (b) Bonds purchased or transferred...

  4. 31 CFR 351.82 - Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... of Series EE savings bonds in a chain letter scheme? 351.82 Section 351.82 Money and Finance... BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.82 Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?...

  5. 31 CFR 351.82 - Does Fiscal Service prohibit the issuance of Series EE savings bonds in a chain letter scheme?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... issuance of Series EE savings bonds in a chain letter scheme? 351.82 Section 351.82 Money and Finance... BUREAU OF THE FISCAL SERVICE OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.82 Does Fiscal Service prohibit the issuance of Series EE savings bonds in a chain letter...

  6. 31 CFR 351.82 - Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... of Series EE savings bonds in a chain letter scheme? 351.82 Section 351.82 Money and Finance... BUREAU OF THE PUBLIC DEBT OFFERING OF UNITED STATES SAVINGS BONDS, SERIES EE Miscellaneous Provisions § 351.82 Does Public Debt prohibit the issuance of Series EE savings bonds in a chain letter scheme?...

  7. 31 CFR 351.33 - What are interest rates and redemption values for Series EE bonds issued May 1, 1997, through...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... values for Series EE bonds issued May 1, 1997, through April 1, 2005, during an extended maturity period... BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series... extended maturity period? During an extended maturity period the bond will be subject to the terms and...

  8. 31 CFR 351.33 - What are interest rates and redemption values for Series EE bonds issued May 1, 1997, through...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... values for Series EE bonds issued May 1, 1997, through April 1, 2005, during an extended maturity period... BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series... extended maturity period? During an extended maturity period the bond will be subject to the terms and...

  9. 31 CFR 351.33 - What are interest rates and redemption values for Series EE bonds issued May 1, 1997, through...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... values for Series EE bonds issued May 1, 1997, through April 1, 2005, during an extended maturity period... BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds Series... extended maturity period? During an extended maturity period the bond will be subject to the terms and...

  10. 31 CFR 351.33 - What are interest rates and redemption values for Series EE bonds issued May 1, 1997, through...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... redemption values for Series EE bonds issued May 1, 1997, through April 1, 2005, during an extended maturity... SAVINGS BONDS, SERIES EE Maturities, Redemption Values, and Investment Yields of Series EE Savings Bonds... extended maturity period? During an extended maturity period the bond will be subject to the terms and...

  11. 31 CFR 351.19 - What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... savings bonds with issue dates prior to May 1, 1995? 351.19 Section 351.19 Money and Finance: Treasury... Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.19 What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995...

  12. 31 CFR 351.19 - What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... savings bonds with issue dates prior to May 1, 1995? 351.19 Section 351.19 Money and Finance: Treasury... Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.19 What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995...

  13. 31 CFR 351.19 - What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... savings bonds with issue dates prior to May 1, 1995? 351.19 Section 351.19 Money and Finance: Treasury... Investment Yields of Series EE Savings Bonds Series Ee Savings Bonds with Issue Dates Prior to May 1, 1995 § 351.19 What are maturity periods of Series EE savings bonds with issue dates prior to May 1, 1995...

  14. Mitral Valve Prolapse

    MedlinePlus

    ... the kid to a pediatric cardiologist (say: pee-dee-AT-rik kar-dee-AHL-uh-jist), a doctor who treats heart ... tests, like an echocardiogram (say: ek-oh-KAR-dee-uh-gram) and an electrocardiogram (say: ee-LEK- ...

  15. Discriminant analysis of the metabolic effects of a new combined contraceptive vaginal ring containing Nestorone/EE vs. a second-generation oral contraceptive containing levonorgestrel/EE.

    PubMed

    Rad, Mandana; Burggraaf, Jacobus; de Kam, Marieke L; Cohen, Adam F; Kluft, Cornelis

    2012-09-01

    Discriminant analysis (DA) was performed on data of two combined hormonal contraceptives (CHC) differing in estrogen ratio to explore whether a combination of variables rather than a single variable distinguishes CHCs better. Data were used of a parallel study in premenopausal women treated for three cycles (21 days on, 7 days off) with a contraceptive vaginal ring delivering Nestorone and ethinyl estradiol (EE) or an oral contraceptive containing levonorgestrel and EE. DA was performed on the change from baseline (CFB) and the end-of-treatment values at 3 months for lipids, sex-hormone binding globulin (SHBG), C-reactive protein, angiotensinogen, blood pressure and hemostasis variables, and on the hemostasis variables only. For the complete set, the CFB for factor VII (FVII), SHBG and plasminogen (PLG), or end-of-treatment SHBG- and FVII level discriminated the treatments best. Maximal discrimination for the hemostasis data was by CFB for FVII and PLG or end-of-treatment FVII level. DA identifies differences between CHCs and may provide information on the factors associated with thrombotic risk. Copyright © 2012 Elsevier Inc. All rights reserved.

  16. Neonatal exposure to 17α-ethynyl estradiol (EE) disrupts follicle development and reproductive hormone profiles in female rats.

    PubMed

    Zhang, Haolin; Taya, Kazuyoshi; Nagaoka, Kentaro; Yoshida, Midori; Watanabe, Gen

    2017-07-05

    Toxic effects induced by exposure to endocrine-disrupting chemicals during fetal and neonatal periods can be irreversible and exert effects throughout an animal's entire life. Our previous study showed that neonatal exposure to 17α-ethynyl estradiol (EE) induced irregular estrous cycle in adults. To uncover the reason for the delayed effect after neonatal exposure to EE, reproductive parameters including ovarian weight, ovarian steroidogenesis, and hormonal profiles were investigated in developing female rats. Ovarian weight decreased at postnatal days (PND) 14 and 21 after neonatal exposure to EE. Ovarian histology at PND21 showed that the ratio of follicles with a diameter >300μm decreased and the ratio of follicles with a diameter of 100-150μm increased in EE-treated ovaries, indicating that neonatal exposure to EE retarded follicular development. Moreover, the expression of P450arom increased at PND14 and the expressions of inhibin/activin subunits βA and βB decreased at PND21 in EE-treated ovaries. Consistent with the expression of P450arom, circulating levels of 17β-estradiol increased at PND14 in EE-treated animals. Furthermore, the circulating levels of luteinizing hormone (LH) also increased at PND14 in the treated animals. Although the expression of Kiss1 did not change in the anteroventral periventricular nucleus (AVPV) of the hypothalamus between controls and EE-treated rats, the expression of Kiss1 was reduced in the arcuate nucleus (ARC) of the hypothalamus at PND14. Based upon those results, we suggest that neonatal exposure to EE disrupted the system regulating the interactions between the reproductive hormones and follicle development in pre-pubertal rats, which may result in reproduction dysfunction in adulthood. Copyright © 2017 Elsevier B.V. All rights reserved.

  17. Biomonitoring of Environmental Status and Trends (BEST) Program: Environmental contaminants, health indicators, and reproductive biomarkers in fish from the Mobile, Apalachicola-Chattahoochee-Flint, Savannah, and Pee Dee River Basins

    USGS Publications Warehouse

    Hinck, Jo Ellen; Blazer, Vicki; Denslow, Nancy D.; Echols, Kathy R.; Gale, Robert W.; May, Tom W.; Claunch, Rachael; Wieser, Carla; Anderson, Patrick J.; Coyle, James J.; Gross, Timothy S.; Tillitt, Donald E.

    2007-01-01

    Largemouth bass (Micropterus salmoides) and common carp (Cyprinus carpio) were collected from 13 sites in 4 river basins in the southeastern United States to document spatial trends in accumulative contaminants, health indicators, and reproductive biomarkers. Organochlorine residues, 2,3,7,8- tetrachlorodibenzo-p-dioxin-like activity (TCDD-EQ), and elemental contaminants were measured in composite samples of whole fish, grouped by species and gender, from each site. Fish were field-examined for external and internal anomalies, selected organs were weighed to compute somatic indices, and tissue and fluid samples were preserved for fish health and reproductive biomarker analyses. Mercury concentrations in bass samples from all sites exceeded toxicity thresholds for mammals [>0.1 micrograms per gram wet weight (ug/g ww)], fish (>0.2 ug/g ww), and birds (>0.3 ug/g ww) and were greatest (>0.5 ug/g ww) in samples from the Alabama River at Eureka Landing, Alabama; the Mobile River at Bucks, Alabama; the Apalachicola River at Blountstown, Florida; the Savannah River at Sylvania, Georgia; and the Pee Dee River at Bucksport, South Carolina. Selenium concentrations were relatively high (>0.75 ug/g ww) in fish from the Tombigbee River at Lavaca, Alabama; the Mobile River at Bucks; and the Chattahoochee River at Omaha, Georgia compared to those from other sites. Concentrations of 2,2-bis (p-chlorophenyl)- 1,1-dichloroethylene (p,p'-DDE) were high in fish from the Chattahoochee River at Omaha and the Mobile River near Bucks, which was near a 2,2-bis (p-chlorophenyl)-1,1- dichloroethylene (DDT) formulating facility that historically discharged into the lower Mobile River. Toxaphene concentrations in fish from the Flint River near Albany, Georgia (60-100 nanograms per gram (ng/g) ww) may pose a risk to fish. Concentrations of other formerly used (total chlordanes, dieldrin, endrin, aldrin, mirex, and hexachlorobenzene) and currently used (pentachlorobenzene, pentachloroanisole

  18. Production of the spin partner of the X (3872) in e+e- collisions

    NASA Astrophysics Data System (ADS)

    Guo, Feng-Kun; Meißner, Ulf-G.; Yang, Zhi

    2015-01-01

    We study the production of the spin partner of the X (3872), which is a D*Dbar* bound state with quantum numbers JPC =2++ and named X2 (4012) here, with the associated emission of a photon in electron-positron collisions. The results show that the ideal energy region to observe the X2 (4012) in e+e- annihilations is from 4.4 GeV to 4.5 GeV, due to the presence of the S-wave Dbar*D1 (2420) and Dbar*D2 (2460) thresholds, respectively. We also point out that it will be difficult to observe the γX (4012) at the e+e- center-of-mass energy around 4.26 GeV.

  19. DATA REVIEW: A compilation of data on hadronic total cross sections in e+e- interactions

    NASA Astrophysics Data System (ADS)

    Whalley, M. R.

    2003-12-01

    A comprehensive compilation of experimental data on total hadronic cross sections, and R ratios, in e+e- interactions is presented. Published data from the Novosibirsk, Orsay, Frascati, SLAC, CORNELL, DESY, KEK and CERN e+e- colliders on both exclusive and inclusive final particle states are included from threshold energies to the highest LEP energies. The data are presented in tabular form supplemented by compilation plots of different exclusive final particle states and of different energy regions. All the data in this review, together with data on a wide variety of other reactions, can be found in, and retrieved from, the Durham HEP Databases on the World Wide Web http://durpdg.dur.ac.uk/HEPDATA.

  20. Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory

    NASA Astrophysics Data System (ADS)

    Abraham, J.; Aglietta, M.; Aguirre, C.; Allard, D.; Allekotte, I.; Allison, P.; Alvarez, C.; Alvarez-Muñiz, J.; Ambrosio, M.; Anchordoqui, L.; Anjos, J. C.; Aramo, C.; Arisaka, K.; Armengaud, E.; Arneodo, F.; Arqueros, F.; Asch, T.; Asorey, H.; Atulugama, B. S.; Aublin, J.; Ave, M.; Avila, G.; Bacelar, J.; Bäcker, T.; Badagnani, D.; Barbosa, A. F.; Barbosa, H. M. J.; Barkhausen, M.; Barnhill, D.; Barroso, S. L. C.; Bauleo, P.; Beatty, J.; Beau, T.; Becker, B. R.; Becker, K. H.; Bellido, J. A.; Benzvi, S.; Berat, C.; Bergmann, T.; Bernardini, P.; Bertou, X.; Biermann, P. L.; Billoir, P.; Blanch-Bigas, O.; Blanco, F.; Blasi, P.; Bleve, C.; Blümer, H.; Boghrat, P.; Boháčová, M.; Bonifazi, C.; Bonino, R.; Boratav, M.; Brack, J.; Brunet, J. M.; Buchholz, P.; Busca, N. G.; Caballero-Mora, K. S.; Cai, B.; Camin, D. V.; Capdevielle, J. N.; Caruso, R.; Castellina, A.; Cataldi, G.; Cazón, L.; Cester, R.; Chauvin, J.; Chiavassa, A.; Chinellato, J. A.; Chou, A.; Chye, J.; Claes, D.; Clark, P. D. J.; Clay, R. W.; Clay, S. B.; Connolly, B.; Cordier, A.; Cotti, U.; Coutu, S.; Covault, C. E.; Cronin, J.; Dagoret-Campagne, S.; Quang, T. Dang; Darriulat, P.; Daumiller, K.; Dawson, B. R.; de Almeida, R. M.; de Carvalho, L. A.; de Donato, C.; de Jong, S. J.; de Mello, W. J. M.; de Mello Neto, J. R. T.; de Mitri, I.; de Oliveira, M. A. L.; de Souza, V.; Del Peral, L.; Deligny, O.; Della Selva, A.; Delle Fratte, C.; Dembinski, H.; di Giulio, C.; Diaz, J. C.; Dobrigkeit, C.; D'Olivo, J. C.; Dornic, D.; Dorofeev, A.; Dova, M. T.; D'Urso, D.; Duvernois, M. A.; Engel, R.; Epele, L.; Erdmann, M.; Escobar, C. O.; Etchegoyen, A.; Ewers, A.; Facal San Luis, P.; Falcke, H.; Fauth, A. C.; Fazio, D.; Fazzini, N.; Fernández, A.; Ferrer, F.; Ferry, S.; Fick, B.; Filevich, A.; Filipčič, A.; Fleck, I.; Fokitis, E.; Fonte, R.; Fuhrmann, D.; Fulgione, W.; García, B.; Garcia-Pinto, D.; Garrard, L.; Garrido, X.; Geenen, H.; Gelmini, G.; Gemmeke, H.; Geranios, A.; Ghia, P. L.; Giller, M.; Gitto, J.; Glass, H.; Gobbi, F.; Gold, M. S.; Gomez Albarracin, F.; Gómez Berisso, M.; Gómez Herrero, R.; Gonçalves Do Amaral, M.; Gongora, J. P.; Gonzalez, D.; Gonzalez, J. G.; González, M.; Góra, D.; Gorgi, A.; Gouffon, P.; Grassi, V.; Grillo, A.; Grunfeld, C.; Grupen, C.; Guarino, F.; Guedes, G. P.; Gutiérrez, J.; Hague, J. D.; Hamilton, J. C.; Harakeh, M. N.; Harari, D.; Harmsma, S.; Hartmann, S.; Harton, J. L.; Haungs, A.; Healy, M. D.; Hebbeker, T.; Heck, D.; Hojvat, C.; Homola, P.; Hörandel, J.; Horneffer, A.; Horvat, M.; Hrabovský, M.; Huege, T.; Iarlori, M.; Insolia, A.; Kaducak, M.; Kalashev, O.; Kampert, K. H.; Keilhauer, B.; Kemp, E.; Klages, H. O.; Kleifges, M.; Kleinfeller, J.; Knapik, R.; Knapp, J.; Koang, D.-H.; Kolotaev, Y.; Kopmann, A.; Krömer, O.; Kuhlman, S.; Kuijpers, J.; Kunka, N.; Kusenko, A.; Lachaud, C.; Lago, B. L.; Lebrun, D.; Lebrun, P.; Lee, J.; Letessier-Selvon, A.; Leuthold, M.; Lhenry-Yvon, I.; Longo, G.; López, R.; Lopez Agüera, A.; Lucero, A.; Maldera, S.; Malek, M.; Maltezos, S.; Mancarella, G.; Manceñido, M. E.; Mandat, D.; Mantsch, P.; Mariazzi, A. G.; Maris, I. C.; Martello, D.; Martinez, N.; Martínez, J.; Martínez, O.; Mathes, H. J.; Matthews, J.; Matthews, J. A. J.; Matthiae, G.; Maurin, G.; Maurizio, D.; Mazur, P. O.; McCauley, T.; McEwen, M.; McNeil, R. R.; Medina, G.; Medina, M. C.; Medina Tanco, G.; Meli, A.; Melo, D.; Menichetti, E.; Menshikov, A.; Meurer, Chr.; Meyhandan, R.; Micheletti, M. I.; Miele, G.; Miller, W.; Mollerach, S.; Monasor, M.; Monnier Ragaigne, D.; Montanet, F.; Morales, B.; Morello, C.; Moreno, E.; Morris, C.; Mostafá, M.; Muller, M. A.; Mussa, R.; Navarra, G.; Nellen, L.; Newman-Holmes, C.; Newton, D.; Thi, T. Nguyen; Nichol, R.; Nierstenhöfer, N.; Nitz, D.; Nogima, H.; Nosek, D.; Nožka, L.; Oehlschläger, J.; Ohnuki, T.; Olinto, A.; Oliveira, L. F. A.; Olmos-Gilbaja, V. M.; Ortiz, M.; Ostapchenko, S.; Otero, L.; Palatka, M.; Pallotta, J.; Parente, G.; Parizot, E.; Parlati, S.; Patel, M.; Paul, T.; Payet, K.; Pech, M.; PeĶala, J.; Pelayo, R.; Pepe, I. M.; Perrone, L.; Petrera, S.; Petrinca, P.; Petrov, Y.; Pham Ngoc, D.; Pham Thi, T. N.; Piegaia, R.; Pierog, T.; Pisanti, O.; Porter, T. A.; Pouryamout, J.; Prado, L.; Privitera, P.; Prouza, M.; Quel, E. J.; Rautenberg, J.; Reis, H. C.; Reucroft, S.; Revenu, B.; Řídký, J.; Risi, A.; Risse, M.; Rivière, C.; Rizi, V.; Robbins, S.; Roberts, M.; Robledo, C.; Rodriguez, G.; Rodríguez Frías, D.; Rodriguez Martino, J.; Rodriguez Rojo, J.; Ros, G.; Rosado, J.; Roth, M.; Roucelle, C.; Rouillé-D'Orfeuil, B.; Roulet, E.; Rovero, A. C.; Salamida, F.; Salazar, H.; Salina, G.; Sánchez, F.; Santander, M.; Santos, E. M.; Sarkar, S.; Sato, R.; Scherini, V.; Schieler, H.; Schmidt, T.; Scholten, O.; Schovánek, P.; Schüssler, F.; Sciutto, S. J.; Scuderi, M.; Semikoz, D.; Sequeiros, G.; Shellard, R. C.; Siffert, B. B.; Sigl, G.; Skelton, P.; Slater, W.; de Grande, N. Smetniansky; Smiałkowski, A.; Šmída, R.; Smith, B. E.; Snow, G. R.; Sokolsky, P.; Sommers, P.; Sorokin, J.; Spinka, H.; Strazzeri, E.; Stutz, A.; Suarez, F.; Suomijärvi, T.; Supanitsky, A. D.; Swain, J.; Szadkowski, Z.; Tamashiro, A.; Tamburro, A.; Tascau, O.; Ticona, R.; Timmermans, C.; Tkaczyk, W.; Todero Peixoto, C. J.; Tonachini, A.; Torresi, D.; Travnicek, P.; Tripathi, A.; Tristram, G.; Tscherniakhovski, D.; Tueros, M.; Tunnicliffe, V.; Ulrich, R.; Unger, M.; Urban, M.; Valdés Galicia, J. F.; Valiño, I.; Valore, L.; van den Berg, A. M.; van Elewyck, V.; Vazquez, R. A.; Veberič, D.; Veiga, A.; Velarde, A.; Venters, T.; Verzi, V.; Videla, M.; Villaseñor, L.; Vo van, T.; Vorobiov, S.; Voyvodic, L.; Wahlberg, H.; Wainberg, O.; Waldenmaier, T.; Walker, P.; Warner, D.; Watson, A. A.; Westerhoff, S.; Wiebusch, C.; Wieczorek, G.; Wiencke, L.; Wilczyńska, B.; Wilczyński, H.; Wileman, C.; Winnick, M. G.; Xu, J.; Yamamoto, T.; Younk, P.; Zas, E.; Zavrtanik, D.; Zavrtanik, M.; Zech, A.; Zepeda, A.; Zha, M.; Ziolkowski, M.; Pierre Auger Collaboration

    2007-04-01

    Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the surface array in this part of the sky is already significantly larger than that of the fore-runner experiments. Our results do not support previous findings of localized excesses in the AGASA and SUGAR data. We set an upper bound on a point-like flux of cosmic rays arriving from the Galactic Centre which excludes several scenarios predicting sources of EeV neutrons from Sagittarius A. Also the events detected simultaneously by the surface and fluorescence detectors (the ‘hybrid’ data set), which have better pointing accuracy but are less numerous than those of the surface array alone, do not show any significant localized excess from this direction.

  1. Phenomenology of a Higgs triplet model at future e+e- colliders

    NASA Astrophysics Data System (ADS)

    Blunier, Sylvain; Cottin, Giovanna; Díaz, Marco A.; Koch, Benjamin

    2017-04-01

    In this work, we investigate the prospects of future e+e- colliders in testing a Higgs triplet model with a scalar triplet and a scalar singlet under S U (2 ). The parameters of the model are fixed so that the lightest C P -even state corresponds to the Higgs particle observed at the LHC at around 125 GeV. This study investigates if the second heaviest C P -even, the heaviest C P -odd and the singly charged states can be observed at existing and future colliders by computing their accessible production and decay channels. In general, the LHC is not well equipped to produce a Higgs boson which is not mainly doubletlike, so we turn our focus to lepton colliders. We find distinctive features of this model in cases where the second heaviest C P -even Higgs is tripletlike, singletlike or a mixture. These features could distinguish the model from other scenarios at future e+e- colliders.

  2. A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory

    NASA Astrophysics Data System (ADS)

    Aab, A.; Abreu, P.; Aglietta, M.; Samarai, I. Al; Albuquerque, I. F. M.; Allekotte, I.; Almela, A.; Alvarez Castillo, J.; Alvarez-Muñiz, J.; Anastasi, G. A.; Anchordoqui, L.; Andrada, B.; Andringa, S.; Aramo, C.; Arqueros, F.; Arsene, N.; Asorey, H.; Assis, P.; Aublin, J.; Avila, G.; Badescu, A. M.; Balaceanu, A.; Barreira Luz, R. J.; Beatty, J. J.; Becker, K. H.; Bellido, J. A.; Berat, C.; Bertaina, M. E.; Bertou, X.; Biermann, P. L.; Billoir, P.; Biteau, J.; Blaess, S. G.; Blanco, A.; Blazek, J.; Bleve, C.; Boháčová, M.; Boncioli, D.; Bonifazi, C.; Borodai, N.; Botti, A. M.; Brack, J.; Brancus, I.; Bretz, T.; Bridgeman, A.; Briechle, F. L.; Buchholz, P.; Bueno, A.; Buitink, S.; Buscemi, M.; Caballero-Mora, K. S.; Caccianiga, L.; Cancio, A.; Canfora, F.; Caramete, L.; Caruso, R.; Castellina, A.; Cataldi, G.; Cazon, L.; Chavez, A. G.; Chinellato, J. A.; Chudoba, J.; Clay, R. W.; Colalillo, R.; Coleman, A.; Collica, L.; Coluccia, M. R.; Conceição, R.; Contreras, F.; Cooper, M. J.; Coutu, S.; Covault, C. E.; Cronin, J.; D'Amico, S.; Daniel, B.; Dasso, S.; Daumiller, K.; Dawson, B. R.; de Almeida, R. M.; de Jong, S. J.; De Mauro, G.; de Mello Neto, J. R. T.; De Mitri, I.; de Oliveira, J.; de Souza, V.; Debatin, J.; Deligny, O.; Di Giulio, C.; Di Matteo, A.; Díaz Castro, M. L.; Diogo, F.; Dobrigkeit, C.; D'Olivo, J. C.; Dorosti, Q.; dos Anjos, R. C.; Dova, M. T.; Dundovic, A.; Ebr, J.; Engel, R.; Erdmann, M.; Erfani, M.; Escobar, C. O.; Espadanal, J.; Etchegoyen, A.; Falcke, H.; Farrar, G.; Fauth, A. C.; Fazzini, N.; Fick, B.; Figueira, J. M.; Filipčič, A.; Fratu, O.; Freire, M. M.; Fujii, T.; Fuster, A.; Gaior, R.; García, B.; Garcia-Pinto, D.; Gaté, F.; Gemmeke, H.; Gherghel-Lascu, A.; Ghia, P. L.; Giaccari, U.; Giammarchi, M.; Giller, M.; Głas, D.; Glaser, C.; Golup, G.; Gómez Berisso, M.; Gómez Vitale, P. F.; González, N.; Gorgi, A.; Gorham, P.; Grillo, A. F.; Grubb, T. D.; Guarino, F.; Guedes, G. P.; Hampel, M. R.; Hansen, P.; Harari, D.; Harrison, T. A.; Harton, J. L.; Haungs, A.; Hebbeker, T.; Heck, D.; Heimann, P.; Herve, A. E.; Hill, G. C.; Hojvat, C.; Holt, E.; Homola, P.; Hörandel, J. R.; Horvath, P.; Hrabovský, M.; Huege, T.; Hulsman, J.; Insolia, A.; Isar, P. G.; Jandt, I.; Jansen, S.; Johnsen, J. A.; Josebachuili, M.; Kääpä, A.; Kambeitz, O.; Kampert, K. H.; Katkov, I.; Keilhauer, B.; Kemp, E.; Kemp, J.; Kieckhafer, R. M.; Klages, H. O.; Kleifges, M.; Kleinfeller, J.; Krause, R.; Krohm, N.; Kuempel, D.; Kukec Mezek, G.; Kunka, N.; Kuotb Awad, A.; LaHurd, D.; Lauscher, M.; Legumina, R.; Leigui de Oliveira, M. A.; Letessier-Selvon, A.; Lhenry-Yvon, I.; Link, K.; Lopes, L.; López, R.; López Casado, A.; Luce, Q.; Lucero, A.; Malacari, M.; Mallamaci, M.; Mandat, D.; Mantsch, P.; Mariazzi, A. G.; Mariş, I. C.; Marsella, G.; Martello, D.; Martinez, H.; Martínez Bravo, O.; Masías Meza, J. J.; Mathes, H. J.; Mathys, S.; Matthews, J.; Matthews, J. A. J.; Matthiae, G.; Mayotte, E.; Mazur, P. O.; Medina, C.; Medina-Tanco, G.; Melo, D.; Menshikov, A.; Micheletti, M. I.; Middendorf, L.; Minaya, I. A.; Miramonti, L.; Mitrica, B.; Mockler, D.; Mollerach, S.; Montanet, F.; Morello, C.; Mostafá, M.; Müller, A. L.; Müller, G.; Muller, M. A.; Müller, S.; Mussa, R.; Naranjo, I.; Nellen, L.; Nguyen, P. H.; Niculescu-Oglinzanu, M.; Niechciol, M.; Niemietz, L.; Niggemann, T.; Nitz, D.; Nosek, D.; Novotny, V.; Nožka, H.; Núñez, L. A.; Ochilo, L.; Oikonomou, F.; Olinto, A.; Palatka, M.; Pallotta, J.; Papenbreer, P.; Parente, G.; Parra, A.; Paul, T.; Pech, M.; Pedreira, F.; Pȩkala, J.; Pelayo, R.; Peña-Rodriguez, J.; Pereira, L. A. S.; Perlín, M.; Perrone, L.; Peters, C.; Petrera, S.; Phuntsok, J.; Piegaia, R.; Pierog, T.; Pieroni, P.; Pimenta, M.; Pirronello, V.; Platino, M.; Plum, M.; Porowski, C.; Prado, R. R.; Privitera, P.; Prouza, M.; Quel, E. J.; Querchfeld, S.; Quinn, S.; Ramos-Pollan, R.; Rautenberg, J.; Ravignani, D.; Revenu, B.; Ridky, J.; Risse, M.; Ristori, P.; Rizi, V.; Rodrigues de Carvalho, W.; Rodriguez Fernandez, G.; Rodriguez Rojo, J.; Rogozin, D.; Roncoroni, M. J.; Roth, M.; Roulet, E.; Rovero, A. C.; Ruehl, P.; Saffi, S. J.; Saftoiu, A.; Salamida, F.; Salazar, H.; Saleh, A.; Salesa Greus, F.; Salina, G.; Sánchez, F.; Sanchez-Lucas, P.; Santos, E. M.; Santos, E.; Sarazin, F.; Sarmento, R.; Sarmiento, C. A.; Sato, R.; Schauer, M.; Scherini, V.; Schieler, H.; Schimp, M.; Schmidt, D.; Scholten, O.; Schovánek, P.; Schröder, F. G.; Schulz, A.; Schulz, J.; Schumacher, J.; Sciutto, S. J.; Segreto, A.; Settimo, M.; Shadkam, A.; Shellard, R. C.; Sigl, G.; Silli, G.; Sima, O.; Śmiałkowski, A.; Šmída, R.; Snow, G. R.; Sommers, P.; Sonntag, S.; Sorokin, J.; Squartini, R.; Stanca, D.; Stanič, S.; Stasielak, J.; Stassi, P.; Strafella, F.; Suarez, F.; Suarez Durán, M.; Sudholz, T.; Suomijärvi, T.; Supanitsky, A. D.; Swain, J.; Szadkowski, Z.; Taboada, A.; Taborda, O. A.; Tapia, A.; Theodoro, V. M.; Timmermans, C.; Todero Peixoto, C. J.; Tomankova, L.; Tomé, B.; Torralba Elipe, G.; Travnicek, P.; Trini, M.; Ulrich, R.; Unger, M.; Urban, M.; Valdés Galicia, J. F.; Valiño, I.; Valore, L.; van Aar, G.; van Bodegom, P.; van den Berg, A. M.; van Vliet, A.; Varela, E.; Vargas Cárdenas, B.; Varner, G.; Vázquez, J. R.; Vázquez, R. A.; Veberič, D.; Vergara Quispe, I. D.; Verzi, V.; Vicha, J.; Villaseñor, L.; Vorobiov, S.; Wahlberg, H.; Wainberg, O.; Walz, D.; Watson, A. A.; Weber, M.; Weindl, A.; Wiencke, L.; Wilczyński, H.; Winchen, T.; Wirtz, M.; Wittkowski, D.; Wundheiler, B.; Yang, L.; Yelos, D.; Yushkov, A.; Zas, E.; Zavrtanik, D.; Zavrtanik, M.; Zepeda, A.; Zimmermann, B.; Ziolkowski, M.; Zong, Z.; Zuccarello, F.

    2017-03-01

    Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. These limits significantly constrain predictions of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region.

  3. Search for the rare decay K(L)-->pi(0)e(+)e(-).

    PubMed

    Alavi-Harati, A; Alexopoulos, T; Arenton, M; Barbosa, R F; Barker, A R; Barrio, M; Bellantoni, L; Bellavance, A; Blucher, E; Bock, G J; Bown, C; Bright, S; Cheu, E; Coleman, R; Corcoran, M D; Cox, B; Erwin, A R; Escobar, C O; Ford, R; Glazov, A; Golossanov, A; Gomes, R A; Gouffon, P; Graham, J; Hamm, J; Hanagaki, K; Hsiung, Y B; Huang, H; Jejer, V; Jensen, D A; Kessler, R; Kobrak, H G E; Kotera, K; LaDue, J; Lai, N; Ledovskoy, A; McBride, P L; Monnier, E; Nelson, K S; Nguyen, H; Ping, H; Prasad, V; Qi, X R; Quinn, B; Ramberg, E J; Ray, R E; Ronquest, M; Santos, E; Senyo, K; Shanahan, P; Shields, J; Slater, W; Smith, D E; Solomey, N; Swallow, E C; Taegar, S A; Tesarek, R J; Toale, P A; Tschirhart, R; Velissaris, C; Wah, Y W; Wang, J; White, H B; Whitmore, J; Wilking, M; Winstein, B; Winston, R; Worcester, E T; Yamanaka, T; Zukanovich, R F

    2004-07-09

    The KTeV/E799 experiment at Fermilab has searched for the rare kaon decay K(L)-->pi(0)e(+)e(-). This mode is expected to have a significant CP violating component. The measurement of its branching ratio could support the standard model or could indicate the existence of new physics. This Letter reports new results from the 1999-2000 data set. One event is observed with an expected background at 0.99+/-0.35 events. We set a limit on the branching ratio of 3.5x10(-10) at the 90% confidence level. Combining with the previous result based on the data set taken in 1997 yields the final KTeV result: BR(K(L)-->pi(0)e(+)e(-))<2.8x10(-10) at 90% C.L.

  4. Slow down of a globally neutral relativistic e-e+ beam shearing the vacuum

    NASA Astrophysics Data System (ADS)

    Alves, E. P.; Grismayer, T.; Silveirinha, M. G.; Fonseca, R. A.; Silva, L. O.

    2016-01-01

    The microphysics of relativistic collisionless shear flows is investigated in a configuration consisting of a globally neutral, relativistic {{e}-}{{e}+} beam streaming through a hollow plasma/dielectric channel. We show through multidimensional particle-in-cell simulations that this scenario excites the mushroom instability (MI), a transverse shear instability on the electron-scale, when there is no overlap (no contact) between the {{e}-}{{e}+} beam and the walls of the hollow plasma channel. The onset of the MI leads to the conversion of the beam’s kinetic energy into magnetic (and electric) field energy, effectively slowing down a globally neutral body in the absence of contact. The collisionless shear physics explored in this configuration may operate in astrophysical environments, particularly in highly relativistic and supersonic settings where macroscopic shear processes are stable.

  5. Beyond Higgs couplings: Probing the Higgs with angular observables at future e$^{+}$e$^{-}$ colliders

    SciTech Connect

    Craig, Nathaniel; Gu, Jiayin; Liu, Zhen; Wang, Kechen

    2016-03-09

    Here, we study angular observables in the $ {e}^{+}{e}^{-}\\to ZH\\to {\\ell}^{+}{\\ell}^{-}b\\overline{b} $ channel at future circular e$^{+}$ e$^{-}$ colliders such as CEPC and FCC-ee. Taking into account the impact of realistic cut acceptance and detector effects, we forecast the precision of six angular asymmetries at CEPC (FCC-ee) with center-of-mass energy $ \\sqrt{s}=240 $ GeV and 5 (30) ab$^{-1}$ integrated luminosity. We then determine the projected sensitivity to a range of operators relevant for he Higgs-strahlung process in the dimension-6 Higgs EFT. Our results show that angular observables provide complementary sensitivity to rate measurements when constraining various tensor structures arising from new physics. We further find that angular asymmetries provide a novel means of both probing BSM corrections to the HZγ coupling and constraining the “blind spot” in indirect limits on supersymmetric scalar top partners.

  6. Boost to h →Z γ : From LHC to future e+e- colliders

    NASA Astrophysics Data System (ADS)

    No, Jose Miguel; Spannowsky, Michael

    2017-04-01

    A precise measurement of the Higgs h →Z γ decay is very challenging at the LHC, due to the very low branching fraction and the shortage of kinematic handles to suppress the large SM Z γ background. We show how such a measurement would be significantly improved by considering Higgs production in association with a hard jet. We compare the prospective HL-LHC sensitivity in this channel with other Higgs production modes where h is fairly boosted, e.g. weak boson fusion, and also to the potential h →Z γ measurement achievable with a future e+e- circular collider (fcc-ee). Finally, we discuss new physics implications of a precision measurement of h →Z γ .

  7. A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory

    DOE PAGES

    Aab, A.; Abreu, P.; Aglietta, M.; ...

    2017-03-09

    Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. Lastly, these limits significantly constrain predictionsmore » of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region.« less

  8. Relating e+e- annihilation to high energy scattering at weak and strong coupling

    NASA Astrophysics Data System (ADS)

    Hatta, Yoshitaka

    2008-11-01

    We explore the correspondence between the final state in e+e- annihilation and the small-x hadronic wavefunction in the transverse plane both in weakly coupled QCD and strongly coupled Script N = 4 SYM. At strong coupling, the virtual and static photon produced in e+e- annihilation can be treated as a shock wave propagating in AdS space leaving spherical energy and charge distributions on the boundary. This is shown to be mathematically identical to the computation of energy and charge distributions in the transverse plane generated by a high energy color singlet state. At weak coupling, the correspondence is useful in studying interjet observables. By performing the stereographic projection to the BFKL equation, we construct an exact solution to the evolution equation derived by Marchesini and Mueller, and find the angular distribution of small-x gluons in the interjet region. Finally we argue that the correspondence holds also for the energy correlation functions.

  9. Study of baryon production mechanism in e+e- annihilation into hadrons

    NASA Astrophysics Data System (ADS)

    Topaz Collaboration; Aoki, M.; Itoh, R.; Watanabe, Y.; Kaneyuki, K.; Ohshima, Y.; Ochi, A.; Tanimori, T.; Abe, K.; Abe, T.; Adachi, I.; Adachi, K.; Aoki, M.; Emi, K.; Enomoto, R.; Fujii, H.; Fujii, T.; Fujii, K.; Fujimoto, J.; Fujiwara, N.; Hayashii, H.; Hirano, H.; Howell, B.; Ikeda, H.; Inoue, Y.; Itami, S.; Iwasaki, H.; Iwasaki, M.; Kajikawa, R.; Kato, S.; Kawabata, S.; Kichimi, H.; Kobayashi, M.; Koltick, D.; Levine, I.; Mamada, H.; Miyabayashi, K.; Miyamoto, A.; Nagai, K.; Nakabayashi, K.; Nakamura, M.; Nakano, E.; Nitoh, O.; Noguchi, S.; Ochiai, F.; Ohishi, N.; Ohnishi, Y.; Okuno, H.; Okusawa, T.; Shibata, E.; Sugiyama, A.; Suzuki, S.; Takahashi, K.; Takahashi, T.; Teramoto, Y.; Tauchi, T.; Tomoto, M.; Tsukamoto, T.; Tsumura, T.; Uno, S.; Yamamoto, A.; Yamauchi, M.

    1998-11-01

    The mechanism of baryon-anti-baryon pair production in e+e- annihilation into hadrons has been studied using the TOPAZ detector at the TRISTAN e+e- collider at an average center-of-mass energy of 58 GeV. The distributions of various p¯p correlations were compared with two prominent models: the cluster-fragmentation model and the string-fragmentation model. We rejected the cluster-fragmentation model at the 90% C.L. Furthermore, in the context of the string-fragmentation model, we favor the ``popcorn'' model, rejecting the ``diquark'' model, where a diquark is considered to be a fundamental entity, at the 95% C.L.

  10. Anisotropy studies around the Galactic Centre at EeV energies with the Auger Observatory

    SciTech Connect

    Aglietta, M.; Aguirre, C.; Allard, D.; Allekotte, I.; Allison, P.; Alvarez, C.; Alvarez-Muniz, J.; Ambrosio, M.; Anchordoqui, L.; Anjos, J.C.; Aramo, C.; /Centro Atomico Bariloche /Buenos Aires, IAFE /Buenos Aires, CONICET /Pierre Auger Observ. /La Plata U. /Natl. Tech. U., San Rafael /Adelaide U. /Catholic U. of Bolivia, La Paz /Bolivia U. /Rio de Janeiro, CBPF /Sao Paulo U.

    2006-07-01

    Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the surface array in this part of the sky is already significantly larger than that of the fore-runner experiments. Our results do not support previous findings of localized excesses in the AGASA and SUGAR data. We set an upper bound on a point-like flux of cosmic rays arriving from the Galactic Centre which excludes several scenarios predicting sources of EeV neutrons from Sagittarius A. Also the events detected simultaneously by the surface and fluorescence detectors (the ''hybrid'' data set), which have better pointing accuracy but are less numerous than those of the surface array alone, do not show any significant localized excess from this direction.

  11. Repair, sidetrack, drilling, and completion of EE-2A for Phase 2 reservoir production service

    SciTech Connect

    Dreesen, D.S.; Cocks, G.G.; Nicholson, R.W.; Thomson, J.C.

    1989-08-01

    Hot Dry Rock (HDR) geothermal energy well EE-2 at Fenton Hill, New Mexico, was sidetracked and redrilled into the HDR Phase II reservoir after two unsuccessful attempts to repair damage in the lower wellbore. Before sidetracking was begun, six cement slurries were pumped to plug the abandoned lower wellbore and to support the production casing where drilling wear was predicted and where sidetracking was to occur. This work and the redrill of EE-2A were completed in November 1987. Specifications were prepared for a state-of-the-art tie-back casing, which was procured, manufactured, and delivered to Fenton Hill in May 1988. The well was then completed in June 1988 for hot-water production service by cementing in a liner and the upper section of production casing and installing and cementing a tie-back casing string. 24 refs., 17 figs., 5 tabs.

  12. Preparation and Surface Property of Fluoroalkyl End-Capped Vinyltrimethoxysilane Oligomer/Talc Composite-Encapsulated Organic Compounds: Application for the Separation of Oil and Water.

    PubMed

    Oikawa, Yuri; Saito, Tomoya; Yamada, Satoshi; Sugiya, Masashi; Sawada, Hideo

    2015-07-01

    Fluoroalkyl end-capped vinyltrimethoxysilane oligomer [R(F)-(CH2-CHSi(OMe)3)n-R(F); n = 2, 3; R(F) = CF(CF3)OC3F7 (R(F)-VM oligomer)] can undergo the sol-gel reaction in the presence of talc particles under alkaline conditions at room temperature to provide the corresponding fluorinated oligomeric silica/talc nanocomposites (RF-VM-SiO2/Talc). A variety of guest molecules such as 2-hydroxy-4-methoxybenzophenone (HMB), bisphenol A (BPA), bisphenol AF, 3-(hydroxysilyl)-1-propanesulfonic acid (THSP), and perfluoro-2-methyl-3-oxahexanoic acid (R(F)-COOH) are effectively encapsulated into the R(F)-VM-SiO2/Talc composite cores to afford the corresponding fluorinated nanocomposites-encapsulated these guest molecules. The R(F)-VM-SiO2/Talc composites encapsulated low molecular weight aromatic compounds such as HMB and BPA can exhibit a superoleophilic-superhydrophobic characteristic on the surfaces; however, the R(F)-VM-SiO2/Talc composite-encapsulated THSP and R(F)-COOH exhibit a superoleophobic-superhydrophilic characteristic on the modified surfaces. In these nanocomposites, the R(F)-VM-SiO2/Talc/THSP composites are applicable to the surface modification of polyester fabric, and the modified polyester fabric possessing a superoleophobic-superhydrophilic characteristic on the surface can be used for the membrane for oil (dodecane)/water separation. In addition, the R(F)-VM-SiO2/Talc composites-encapsulated micrometer-size controlled cross-linked polystyrene particles can be also prepared under similar conditions, and the obtained composite white-colored particle powders are applied to the packing material for the column chromatography to separate water-in-oil (W/O) emulsion.

  13. CO2 Flow in the EE-3 Annulus

    SciTech Connect

    Kelkar, Sharad

    1985-05-10

    Don Brown asked me to look at how much CO2 would be required to produce a 600 psi pressure change in the EE-3 annulus. If a column of water were replaced by a column of CO2, at 500 psi and 50°C, 1583 feet would be required to produce a 600 psi change in the static head.

  14. The MUNU experiment on low energy overlineνee- scattering

    NASA Astrophysics Data System (ADS)

    Broggini, C.; MUNU Collaboration

    2002-07-01

    We built a low background detector to measure the overlineνee- elastic cross section at low energy. The detector has been installed close to a nuclear reactor in Bugey and it is running since almost 2 years. After having reduced the electron background by more than three orders of magnitude we have now the evidence, for the first time, of the overlineνe peak from the reactor.

  15. Photocopy of a photograph showing a woman (not E.E. Lape, ...

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

    Photocopy of a photograph showing a woman (not E.E. Lape, but possibly E.F. Read) seated outside of southwest corner of Murdock House (circa 1930s?). (Photo found in Lape-Read House, located at U.S. Fish and Wildlife Service - Murdock Hill, Murdock House, South side of Old Clinton Road (U.S. Route 1), 1 mile east of Horse Hill Road, Westbrook, Middlesex County, CT

  16. Extracting the kaon Collins function from e+e- hadron pair production data

    NASA Astrophysics Data System (ADS)

    Anselmino, M.; Boglione, M.; D'Alesio, U.; Hernandez, J. O. Gonzalez; Melis, S.; Murgia, F.; Prokudin, A.

    2016-02-01

    The latest data released by the BABAR Collaboration on azimuthal correlations measured for pion-kaon and kaon-kaon pairs produced in e+e- annihilations allow, for the first time, a direct extraction of the kaon Collins functions. These functions are then used to compute the kaon Collins asymmetries in semi-inclusive deep inelastic scattering processes, which result in good agreement with the measurements performed by the HERMES and COMPASS collaborations.

  17. Measurements of the Collins asymmetries for kaons and pions in e+e- annihilations at BABAR

    NASA Astrophysics Data System (ADS)

    Filippi, A.

    2016-07-01

    New measurements of the Collins asymmetries were performed by BABAR exploiting inclusive e+e- → h1h2 X annihilations (with h1,2 = π and/or K) mainly at the energy of the ϒ(4S), which corresponds to a squared transferred momentum Q2 ~ 110 GeV2c4. For the first time asymmetries following strange quarks fragmentation could be derived as a function of the fractional energy carried out by inclusively emitted hadron pairs.

  18. Sex Pheromones: (E,E)-8,10-Dodecadien-1-ol in the Codling Moth.

    PubMed

    Beroza, M; Bierl, B A; Moffitt, H R

    1974-01-11

    Although (E,E)-8,10-Dodecadien-l-ol was reported to be a sex pheromone of the codling moth [Laspeyresia pomonella (L.)], its presence in the moth was questioned, mainly because it has not been isolated. A computerized search of data from gas chromatography-mass spectrometry of a partially purified extract equivalent to 45 abdominal tips of female moths produced a mass spectrum that matched that of the authentic coinpound. Other data also confirmed the presence of the compound.

  19. Experiment 2074: post-drilling reservoir flow testing through EE-3A first revision

    SciTech Connect

    Brown, Donald W.; Robinson, Bruce A.

    1987-11-20

    As previously outlined in memorandum ESS-4-87-305 (11/12/87), EE-3A will be pressurized with the Kobe pumps for the next week, and then a sequence of reservoir flow tests and logs will be conducted for a one to two week period beginning Tuesday, 12/1/87. The purpose of this memorandum is to better define this flow test and sequence of logs, organized as a "formal" experiment.

  20. Characterizing invisible electroweak particles through single-photon processes at high energy e+e- colliders

    NASA Astrophysics Data System (ADS)

    Choi, Seong Youl; Han, Tao; Kalinowski, Jan; Rolbiecki, Krzysztof; Wang, Xing

    2015-11-01

    We explore the scenarios where the only accessible new states at the electroweak scale consist of a pair of color-singlet electroweak particles, the masses of which are degenerate at the tree level and split only by electroweak symmetry breaking at the loop level. For the sake of illustration, we consider a supersymmetric model and study the following three representative cases with the lower-lying states as (a) two spin-1 /2 Higgsino SU(2 ) L doublets, (b) a spin-1 /2 wino SU(2 ) L triplet and (c) a spin-0 left-handed slepton SU(2 ) L doublet. Due to the mass degeneracy, those lower-lying electroweak states are difficult to observe at the LHC and rather challenging to detect at the e+e- collider as well. We exploit the pair production in association with a hard photon radiation in high energy e+e- collisions. If kinematically accessible, such single-photon processes at e+e- colliders with polarized beams enable us to characterize each scenario by measuring the energy of the associated hard photon and to determine the spin of the nearly invisible particles unambiguously through the threshold behavior in the photon energy distribution.