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Louisiana State University

2011

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Search For Ultrahigh Energy Neutrinos In Highly Inclined Events At The Pierre Auger Observatory, P. Abreu, M. Aglietta, E. J. Ahn, I. F.M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Castillo, J. Alvarez-Muñiz, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, A. Anzalone, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, T. Bäcker, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L.C. Barroso, B. Baughman, J. Bäuml Dec 2011

Search For Ultrahigh Energy Neutrinos In Highly Inclined Events At The Pierre Auger Observatory, P. Abreu, M. Aglietta, E. J. Ahn, I. F.M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Castillo, J. Alvarez-Muñiz, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, A. Anzalone, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, T. Bäcker, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L.C. Barroso, B. Baughman, J. Bäuml

Faculty Publications

The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated …

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Measurement Of The Bs0 Lifetime In Fully And Partially Reconstructed Bs0→Ds-(Φπ -)X Decays In P̄P Collisions At √S=1.96tev, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari Dec 2011

Measurement Of The Bs0 Lifetime In Fully And Partially Reconstructed Bs0→Ds-(Φπ -)X Decays In P̄P Collisions At √S=1.96tev, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari

Faculty Publications

We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ -)X decays in 1.3fb -1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0. 027(syst)ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions. © 2011 American Physical Society.

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Directional Limits On Persistent Gravitational Waves Using Ligo S5 Science Data, J. Abadie, B. P. Abbott, R. Abbott, M. Abernathy, T. Accadia, F. Acernese, C. Adams, R. Adhikari, P. Ajith, B. Allen, G. S. Allen, E. Amador Ceron, R. S. Amin, S. B. Anderson, W. G. Anderson, F. Antonucci, M. A. Arain, M. C. Araya, M. Aronsson, K. G. Arun, Y. Aso, S. M. Aston, P. Astone, D. Atkinson, P. Aufmuth, C. Aulbert, S. Babak, P. Baker, G. Ballardin, S. Ballmer, D. Barker, S. Barnum, F. Barone Dec 2011

Directional Limits On Persistent Gravitational Waves Using Ligo S5 Science Data, J. Abadie, B. P. Abbott, R. Abbott, M. Abernathy, T. Accadia, F. Acernese, C. Adams, R. Adhikari, P. Ajith, B. Allen, G. S. Allen, E. Amador Ceron, R. S. Amin, S. B. Anderson, W. G. Anderson, F. Antonucci, M. A. Arain, M. C. Araya, M. Aronsson, K. G. Arun, Y. Aso, S. M. Aston, P. Astone, D. Atkinson, P. Aufmuth, C. Aulbert, S. Babak, P. Baker, G. Ballardin, S. Ballmer, D. Barker, S. Barnum, F. Barone

Faculty Publications

The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2-20×10-50strain2Hz-1 and 5-35×10 -49strain2Hz-1sr-1 for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets …

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A New Sedimentary Benchmark For The Deccan Traps Volcanism?, Eric Font, Anne Nédélec, Brooks B. Ellwood, José Mirão, Pedro F. Silva Dec 2011

A New Sedimentary Benchmark For The Deccan Traps Volcanism?, Eric Font, Anne Nédélec, Brooks B. Ellwood, José Mirão, Pedro F. Silva

Faculty Publications

The origin of the Cretaceous-Paleogene boundary (KPB) mass extinction is still the center of acrimonious debates by opposing partisans of the bolide impact theory to those who favored a terrestrial origin linked to the Deccan Traps volcanism. Here we apply an original and high-resolution environmental magnetic study of the reference Bidart section, France. Our results show that the KPB is identified by an abrupt positive shift of the magnetic susceptibility (MS), also observed by others at the KPB elsewhere. In addition, an anomalous interval of very low MS, carried by an unknown Cl-bearing iron oxide similar to specular hematite, is …

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Production Of 26al In Stellar Hydrogen-Burning Environments: Spectroscopic Properties Of States In 27si, A. Parikh, K. Wimmer, T. Faestermann, R. Hertenberger, H. F. Wirth, A. A. Chen, J. A. Clark, C. M. Deibel, C. Herlitzius, R. Krücken, D. Seiler, K. Setoodehnia, K. Straub, C. Wrede Dec 2011

Production Of 26al In Stellar Hydrogen-Burning Environments: Spectroscopic Properties Of States In 27si, A. Parikh, K. Wimmer, T. Faestermann, R. Hertenberger, H. F. Wirth, A. A. Chen, J. A. Clark, C. M. Deibel, C. Herlitzius, R. Krücken, D. Seiler, K. Setoodehnia, K. Straub, C. Wrede

Faculty Publications

Model predictions of the amount of the radioisotope 26Al produced in hydrogen-burning environments require reliable estimates of the thermonuclear rates for the 26gAl(p,γ) 27Si and 26mAl(p,γ)27Si reactions. These rates depend upon the spectroscopic properties of states in 27Si within about 1 MeV of the 26gAl + p threshold (Sp = 7463 keV). We have studied the 28Si(3He,α)27Si reaction at 25 MeV using a high-resolution quadrupole-dipole-dipole-dipole magnetic spectrograph. For the first time with a transfer reaction, we have constrained Jπ values for states in 27Si over Ex = 7.0-8.1 MeV through angular distribution measurements. Aside from a few important cases, we …

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Synthesis And Characterization Of Amphiphilic Cyclic Diblock Copolypeptoids From N-Heterocyclic Carbene-Mediated Zwitterionic Polymerization Of N-Substituted N-Carboxyanhydride, Chang Uk Lee, Thomas P. Smart, Li Guo, Thomas H. Epps, Donghui Zhang Dec 2011

Synthesis And Characterization Of Amphiphilic Cyclic Diblock Copolypeptoids From N-Heterocyclic Carbene-Mediated Zwitterionic Polymerization Of N-Substituted N-Carboxyanhydride, Chang Uk Lee, Thomas P. Smart, Li Guo, Thomas H. Epps, Donghui Zhang

Faculty Publications

N-Heterocyclic carbene (NHC)-mediated ring-opening polymerization of N-decyl-N-carboxylanhydride monomer (De-NCA) has been shown to occur in a controlled manner, yielding cyclic poly(N-decylglycine)s (c-PNDGs) with polymer molecular weights (MW) between 4.8 and 31 kg mol -1 and narrow molecular weight distributions (PDI < 1.15). The reaction exhibits pseudo-first-order kinetics with respect to monomer concentration. The polymer MW increases linearly with conversion, consistent with a living polymerization. ESI MS and SEC analyses confirm the cyclic architectures of the forming polymers. DSC and WAXS studies reveal that the c-PNDG homopolymers are highly crystalline with two prominent first-order transitions at 72-79 °C (T m,1) and 166-177 °C (T m,2), which have been attributed to side chain and main chain melting, respectively. A series of amphiphilic cyclic diblock copolypeptoids [i.e., poly(N-methylglycine)-b-poly(N- decylglycine) (c-PNMG-b-PNDG)] with variable molecular weight and composition were synthesized by sequential NHC-mediated polymerization of the corresponding N-methyl-N-carboxyanhydride (Me-NCA) and De-NCA monomers. 1H NMR analysis reveals that adjusting the initial monomer to NHC molar ratio can readily control the block copolymer chain length and composition. Time-lapsed light scattering and cryogenic transmission electron microscopy (cryo-TEM) analyses of c-PNDG-b-PNMG samples showed that the amphiphilic cyclic block copolypeptoids self-assemble into spherical micelles that reorganize into micrometer-long cylindrical micelles with uniform diameter in room temperature methanol over the course of several days. An identical morphological transition has also been noted for the linear analogues, which occurs more rapidly than for the cyclic copolypeptoids. We tentatively attribute this difference to the different crystallization kinetics of the solvophobic block (i.e., PNDG) in the cyclic and linear block copolypeptoids. © 2011 American Chemical Society.

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Search For A Heavy Toplike Quark In Pp̄ Collisions At √S=1.96tev, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari Dec 2011

Search For A Heavy Toplike Quark In Pp̄ Collisions At √S=1.96tev, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari

Faculty Publications

We present the results of a search for pair production of a heavy toplike (t ′) quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6fb -1 collected by the CDF II detector in pp̄ collisions at √s=1.96TeV. We perform parallel searches for t ′→Wb and t ′→Wq (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t ′ quark mass, we set upper limits on the t ′t ̄′ production cross section …

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Measurement Of Polarization And Search For Cp Violation In B S0→Φφ Decays, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari Dec 2011

Measurement Of Polarization And Search For Cp Violation In B S0→Φφ Decays, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari

Faculty Publications

We present the first measurement of polarization and CP-violating asymmetries in a Bs0 decay into two light vector mesons, B s0→φφ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9fb -1 of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be f L=0.348±0.041(stat)±0.021(syst), and the branching ratio B(Bs0→φφ)=[2.32±0.18(stat)±0. 82(syst)]×10 -5. Asymmetries of decay angle distributions sensitive to CP violation are measured to be A u=-0.007±0. 064(stat)±0.018(syst) and A v=-0.120±0.064(stat) ±0.016(syst). © 2011 American Physical Society.

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The T2k Experiment, K. Abe, N. Abgrall, H. Aihara, Y. Ajima, J. B. Albert, D. Allan, P. A. Amaudruz, C. Andreopoulos, B. Andrieu, M. D. Anerella, C. Angelsen, S. Aoki, O. Araoka, J. Argyriades, A. Ariga, T. Ariga, S. Assylbekov, J. P.A.M. De André, D. Autiero, A. Badertscher, O. Ballester, M. Barbi, G. J. Barker, P. Baron, G. Barr, L. Bartoszek, M. Batkiewicz, F. Bay Dec 2011

The T2k Experiment, K. Abe, N. Abgrall, H. Aihara, Y. Ajima, J. B. Albert, D. Allan, P. A. Amaudruz, C. Andreopoulos, B. Andrieu, M. D. Anerella, C. Angelsen, S. Aoki, O. Araoka, J. Argyriades, A. Ariga, T. Ariga, S. Assylbekov, J. P.A.M. De André, D. Autiero, A. Badertscher, O. Ballester, M. Barbi, G. J. Barker, P. Baron, G. Barr, L. Bartoszek, M. Batkiewicz, F. Bay

Faculty Publications

The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle θ13 by observing νe appearance in a νμ beam. It also aims to make a precision measurement of the known oscillation parameters, Δ232+ and sin22θ23, via νμ disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 …

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The Circumstellar Environment Of R Coronae Borealis: White Dwarf Merger Or Final-Helium-Shell Flash?, Geoffrey C. Clayton, Ben E.K. Sugerman, S. Adam Stanford, B. A. Whitney, J. Honor, B. Babler, M. J. Barlow, K. D. Gordon, J. E. Andrews, T. R. Geballe, Howard E. Bond, O. De Marco, W. A. Lawson, B. Sibthorpe, G. Olofsson, E. Polehampton, H. L. Gomez, M. Matsuura, P. C. Hargrave, R. J. Ivison, R. Wesson, S. J. Leeks, B. M. Swinyard, T. L. Lim Dec 2011

The Circumstellar Environment Of R Coronae Borealis: White Dwarf Merger Or Final-Helium-Shell Flash?, Geoffrey C. Clayton, Ben E.K. Sugerman, S. Adam Stanford, B. A. Whitney, J. Honor, B. Babler, M. J. Barlow, K. D. Gordon, J. E. Andrews, T. R. Geballe, Howard E. Bond, O. De Marco, W. A. Lawson, B. Sibthorpe, G. Olofsson, E. Polehampton, H. L. Gomez, M. Matsuura, P. C. Hargrave, R. J. Ivison, R. Wesson, S. J. Leeks, B. M. Swinyard, T. L. Lim

Faculty Publications

In 2007, R Coronae Borealis (RCrB) went into a historically deep and long decline. In this state, the dust acts like a natural coronagraph at visible wavelengths, allowing faint nebulosity around the star to be seen. Imaging has been obtained from 0.5 to 500 μm with Gemini/GMOS, Hubble Space Telescope/WFPC2, Spitzer/MIPS, and Herschel/SPIRE. Several of the structures around RCrB are cometary globules caused by wind from the star streaming past dense blobs. The estimated dust mass of the knots is consistent with their being responsible for the RCrB declines if they form along the line of sight to the star. …

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Developmental Defects In Mutants Of The Psbp Domain Protein 5 In Arabidopsis Thaliana, Johnna L. Roose, Laurie K. Frankel, Terry M. Bricker Dec 2011

Developmental Defects In Mutants Of The Psbp Domain Protein 5 In Arabidopsis Thaliana, Johnna L. Roose, Laurie K. Frankel, Terry M. Bricker

Faculty Publications

Plants contain an extensive family of PsbP-related proteins termed PsbP-like (PPL) and PsbP domain (PPD) proteins, which are localized to the thylakoid lumen. The founding member of this family, PsbP, is an established component of the Photosystem II (PS II) enzyme, and the PPL proteins have also been functionally linked to other photosynthetic processes. However, the functions of the remaining seven PPD proteins are unknown. To elucidate the function of the PPD5 protein (At5g11450) in Arabidopsis, we have characterized a mutant T-DNA insertion line (SALK_061118) as well as several RNAi lines designed to suppress the expression of this gene. The …

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Quantum Interference Channels, Omar Fawzi, Patrick Hayden, Ivan Savov, Pranab Sen, Mark M. Wilde Dec 2011

Quantum Interference Channels, Omar Fawzi, Patrick Hayden, Ivan Savov, Pranab Sen, Mark M. Wilde

Faculty Publications

The discrete memoryless interference channel is modelled as a conditional probability distribution with two outputs depending on two inputs and has widespread applications in practical communication scenarios. In this paper, we introduce and study the quantum interference channel, a generalization of a two-input, two-output memoryless channel to the setting of quantum Shannon theory. We discuss three different coding strategies and obtain corresponding achievable rate regions for quantum interference channels. We calculate the capacity regions in the special cases of "very strong" and "strong" interference. The achievability proof in the case of "strong" interference exploits a novel quantum simultaneous decoder for …

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Eclipses During The 2010 Eruption Of The Recurrent Nova U Scorpii, Bradley E. Schaefer, Ashley Pagnotta, Aaron P. Lacluyze, Daniel E. Reichart, Kevin M. Ivarsen, Joshua B. Haislip, Melissa C. Nysewander, Justin P. Moore, Arto Oksanen, Hannah L. Worters, Ramotholo R. Sefako, Jaco Mentz, Shawn Dvorak, Tomas Gomez, Barbara G. Harris, Arne A. Henden, Thiam Guan Tan, Matthew Templeton, W. H. Allen, Berto Monard, Robert D. Rea, George Roberts, William Stein, Hiroyuki Maehara, Thomas Richards, Chris Stockdale, Tom Krajci, George Sjoberg, Jennie Mccormick, Mikhail Revnivtsev, Sergei Molkov, Valery Suleimanov, Matthew J. Darnley Dec 2011

Eclipses During The 2010 Eruption Of The Recurrent Nova U Scorpii, Bradley E. Schaefer, Ashley Pagnotta, Aaron P. Lacluyze, Daniel E. Reichart, Kevin M. Ivarsen, Joshua B. Haislip, Melissa C. Nysewander, Justin P. Moore, Arto Oksanen, Hannah L. Worters, Ramotholo R. Sefako, Jaco Mentz, Shawn Dvorak, Tomas Gomez, Barbara G. Harris, Arne A. Henden, Thiam Guan Tan, Matthew Templeton, W. H. Allen, Berto Monard, Robert D. Rea, George Roberts, William Stein, Hiroyuki Maehara, Thomas Richards, Chris Stockdale, Tom Krajci, George Sjoberg, Jennie Mccormick, Mikhail Revnivtsev, Sergei Molkov, Valery Suleimanov, Matthew J. Darnley

Faculty Publications

The eruption of the recurrent nova U Scorpii on 2010 January 28 is now the all-time best observed nova event. We report 36,776 magnitudes throughout its 67 day eruption, for an average of one measure every 2.6 minutes. This unique and unprecedented coverage is the first time that a nova has had any substantial amount of fast photometry. With this, two new phenomena have been discovered: the fast flares in the early light curve seen from days 9-15 (which have no proposed explanation) and the optical dips seen out of eclipse from days 41-61 (likely caused by raised rims of …

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The Effects Of Dust On The Optical And Infrared Evolution Of Sn 2004et, J. Fabbri, M. Otsuka, M. J. Barlow, Joseph S. Gallagher, R. Wesson, B. E.K. Sugerman, Geoffrey C. Clayton, M. Meixner, J. E. Andrews, D. L. Welch, B. Ercolano Dec 2011

The Effects Of Dust On The Optical And Infrared Evolution Of Sn 2004et, J. Fabbri, M. Otsuka, M. J. Barlow, Joseph S. Gallagher, R. Wesson, B. E.K. Sugerman, Geoffrey C. Clayton, M. Meixner, J. E. Andrews, D. L. Welch, B. Ercolano

Faculty Publications

We present an analysis of multi-epoch observations of the Type II-P supernova SN 2004et. New and archival optical spectra of SN 2004et are used to study the evolution of the Hα and [Oi] 6300-Å line profiles between days 259 and 646. Mid-infrared imaging with Michelle on Gemini-North and with all three instruments of the Spitzer Space Telescope was carried out between 2004 and 2010, supplemented by archival Spitzer data. We include Spitzer'warm' mission photometry at 3.6 and 4.5μm obtained on days 1779, 1931 and 2151, along with ground-based and Hubble Space Telescope (HST) optical and near-infrared observations obtained between days …

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Stepping Out Of The Disney Princess Castle Into The New Girl World With The Disney Divas: A Content Analysis Of Hannah Montana And Wizards Of Waverly Place, Hanna Munoz Dec 2011

Stepping Out Of The Disney Princess Castle Into The New Girl World With The Disney Divas: A Content Analysis Of Hannah Montana And Wizards Of Waverly Place, Hanna Munoz

Honors Theses

No abstract provided.

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Accounting Methods To Effectively Measure The Performance Of Public Universities' Academic Units And Increase Allocation Efficiency: The Role Of Research Grants, Madeleine Arivett Dec 2011

Accounting Methods To Effectively Measure The Performance Of Public Universities' Academic Units And Increase Allocation Efficiency: The Role Of Research Grants, Madeleine Arivett

Honors Theses

No abstract provided.

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Quantum Scalar Field In Quantum Gravity: The Propagator And Lorentz Invariance In The Spherically Symmetric Case, Rodolfo Gambini, Jorge Pullin, Saeed Rastgoo Dec 2011

Quantum Scalar Field In Quantum Gravity: The Propagator And Lorentz Invariance In The Spherically Symmetric Case, Rodolfo Gambini, Jorge Pullin, Saeed Rastgoo

Faculty Publications

We recently studied gravity coupled to a scalar field in spherical symmetry using loop quantum gravity techniques. Since there are local degrees of freedom one faces the "problem of dynamics". We attack it using the "uniform discretization technique". We find the quantum state that minimizes the value of the master constraint for the case of weak fields and curvatures. The state has the form of a direct product of Gaussians for the gravitational variables times a modified Fock state for the scalar field. In this paper we do three things. First, we verify that the previous state also yields a …

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Transient Receptor Potential Channel M4 And M5 In Magnocellular Cells In Rat Supraoptic And Paraventricular Nuclei, R. Teruyama, M. Sakuraba, H. Kurotaki, W. E. Armstrong Dec 2011

Transient Receptor Potential Channel M4 And M5 In Magnocellular Cells In Rat Supraoptic And Paraventricular Nuclei, R. Teruyama, M. Sakuraba, H. Kurotaki, W. E. Armstrong

Faculty Publications

The neurohypophysial hormones, vasopressin (VP) and oxytocin (OT), are synthesised by magnocellular cells in the supraoptic nucleus (SON) and the paraventricular nucleus (PVN) of the hypothalamus. The release of VP into the general circulation from the neurohypophysis increases during hyperosmolality, hypotension and hypovolaemia. VP neurones increase hormone release by increasing their firing rate as a result of adopting a phasic bursting. Depolarising after potentials (DAPs) following a series of action potentials are considered to be involved in the generation of the phasic bursts by summating to plateau potentials. We recently discovered a fast DAP (fDAP) in addition to the slower …

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Repetitive Elements May Comprise Over Two-Thirds Of The Human Genome, A. P.Jason De Koning, Wanjun Gu, Todd A. Castoe, Mark A. Batzer, David D. Pollock Dec 2011

Repetitive Elements May Comprise Over Two-Thirds Of The Human Genome, A. P.Jason De Koning, Wanjun Gu, Todd A. Castoe, Mark A. Batzer, David D. Pollock

Faculty Publications

Transposable elements (TEs) are conventionally identified in eukaryotic genomes by alignment to consensus element sequences. Using this approach, about half of the human genome has been previously identified as TEs and low-complexity repeats. We recently developed a highly sensitive alternative de novo strategy, P-clouds, that instead searches for clusters of high-abundance oligonucleotides that are related in sequence space (oligo "clouds"). We show here that P-clouds predicts >840 Mbp of additional repetitive sequences in the human genome, thus suggesting that 66%-69% of the human genome is repetitive or repeat-derived. To investigate this remarkable difference, we conducted detailed analyses of the ability …

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Alu Pair Exclusions In The Human Genome, George W. Cook, Miriam K. Konkel, James D. Major, Jerilyn A. Walker, Kyudong Han, Mark A. Batzer Dec 2011

Alu Pair Exclusions In The Human Genome, George W. Cook, Miriam K. Konkel, James D. Major, Jerilyn A. Walker, Kyudong Han, Mark A. Batzer

Faculty Publications

Background: The human genome contains approximately one million Alu elements which comprise more than 10% of human DNA by mass. Alu elements possess direction, and are distributed almost equally in positive and negative strand orientations throughout the genome. Previously, it has been shown that closely spaced Alu pairs in opposing orientation (inverted pairs) are found less frequently than Alu pairs having the same orientation (direct pairs). However, this imbalance has only been investigated for Alu pairs separated by 650 or fewer base pairs (bp) in a study conducted prior to the completion of the draft human genome sequence. Results: We …

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Longitudinal Assessment Of Cognitive And Psychosocial Functioning After Hurricanes Katrina And Rita: Exploring Disaster Impact On Middle-Aged, Older, And Oldest-Old Adults, Katie E. Cherry, Jennifer Silva Brown, Loren D. Marks, Sandro Galea, Julia Volaufova, Christina Lefante, L. Joseph Su, David A. Welsh, S. Michal Jazwinski, Meghan B. Allen, Gloria Anderson, Iina E. Antikainen, Arturo M. Arce, Jennifer Arceneaux, Mark A. Batzer, Emily O. Boudreaux, Lauri Byerley, Catherine M. Champagne, Liliana Cosenza, M. Elaine Cress, Jenny Y. Denver, Andy Deutsch, Devon A. Dobrosielski, Rebecca Ellis, Marla J. Erwin, Mark Erwin, Jennifer Fabre, Elizabeth T. Fontham, Madlyn Frisard, Paula Geiselman, Lindsey Goodwin, Tiffany Hall, Scott W. Herke, Jennifer Hayden Dec 2011

Longitudinal Assessment Of Cognitive And Psychosocial Functioning After Hurricanes Katrina And Rita: Exploring Disaster Impact On Middle-Aged, Older, And Oldest-Old Adults, Katie E. Cherry, Jennifer Silva Brown, Loren D. Marks, Sandro Galea, Julia Volaufova, Christina Lefante, L. Joseph Su, David A. Welsh, S. Michal Jazwinski, Meghan B. Allen, Gloria Anderson, Iina E. Antikainen, Arturo M. Arce, Jennifer Arceneaux, Mark A. Batzer, Emily O. Boudreaux, Lauri Byerley, Catherine M. Champagne, Liliana Cosenza, M. Elaine Cress, Jenny Y. Denver, Andy Deutsch, Devon A. Dobrosielski, Rebecca Ellis, Marla J. Erwin, Mark Erwin, Jennifer Fabre, Elizabeth T. Fontham, Madlyn Frisard, Paula Geiselman, Lindsey Goodwin, Tiffany Hall, Scott W. Herke, Jennifer Hayden

Faculty Publications

The authors examined the effects of Hurricanes Katrina and Rita on cognitive and psychosocial functioning in a lifespan sample of adults 6-14 months after the storms. Participants were recruited from the Louisiana Healthy Aging Study. Most were assessed during the immediate impact period and retested for this study. Analyses of pre- and post-disaster cognitive data confirmed that storm-related decrements in working memory for middle-aged and older adults observed in the immediate impact period had returned to pre-hurricane levels in the post-disaster recovery period. Middle-aged adults reported more storm-related stressors and greater levels of stress than the two older groups at …

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Density Dependent Utilities With Transaction Costs, Eriyoti Chikodza, Julius N Esunge Dec 2011

Density Dependent Utilities With Transaction Costs, Eriyoti Chikodza, Julius N Esunge

Communications on Stochastic Analysis

No abstract provided.

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Mrm-Applicable Measures For The Power Function Of The Second Order, Izumi Kubo, Hui-Hsiung Kuo, Suat Namli Dec 2011

Mrm-Applicable Measures For The Power Function Of The Second Order, Izumi Kubo, Hui-Hsiung Kuo, Suat Namli

Communications on Stochastic Analysis

No abstract provided.

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The Minimal Martingale Measure For The Price Process With Poisson Shot Noise Jumps, Jun Yan Dec 2011

The Minimal Martingale Measure For The Price Process With Poisson Shot Noise Jumps, Jun Yan

Communications on Stochastic Analysis

No abstract provided.

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Consistent Price Systems For Bounded Processes, Florian Maris, Eric Mbakop, Hasanjan Sayit Dec 2011

Consistent Price Systems For Bounded Processes, Florian Maris, Eric Mbakop, Hasanjan Sayit

Communications on Stochastic Analysis

No abstract provided.

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Changes Of Measure And Representations Of The First Hitting Time Of A Bessel Process, Gerardo Hernandez-Del-Valle Dec 2011

Changes Of Measure And Representations Of The First Hitting Time Of A Bessel Process, Gerardo Hernandez-Del-Valle

Communications on Stochastic Analysis

No abstract provided.

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Intraday Empirical Analysis Of Electricity Price Behaviour, Eckhard Platen, Jason West Dec 2011

Intraday Empirical Analysis Of Electricity Price Behaviour, Eckhard Platen, Jason West

Communications on Stochastic Analysis

No abstract provided.

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A Martingale Representation For The Maximum Of A Lévy Process, Bruno Rémillard, Jean-François Renaud Dec 2011

A Martingale Representation For The Maximum Of A Lévy Process, Bruno Rémillard, Jean-François Renaud

Communications on Stochastic Analysis

No abstract provided.

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A Connection Between The Poissonian Wick Product And The Discrete Convolution, Alberto Lanconelli, Luigi Sportelli Dec 2011

A Connection Between The Poissonian Wick Product And The Discrete Convolution, Alberto Lanconelli, Luigi Sportelli

Communications on Stochastic Analysis

No abstract provided.

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Stochastic Analysis Of Backward Tidal Dynamics Equation, Hong Yin Dec 2011

Stochastic Analysis Of Backward Tidal Dynamics Equation, Hong Yin

Communications on Stochastic Analysis

No abstract provided.

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