Filters: Collection: "ir_uspace" School Or College: "College of Science" Type: "Text" Format: "application/pdf"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 151 |
 |
Wu, Yong-Shi | Remarks on noncommutative open string theory: V duality and holography | In this paper we study the interplay of electric and magnetic backgrounds in determining the decoupling limit of coincident D branes towards a noncommutative Yang-Mills (NCYM) or open string (NCOS) theory. No decoupling limit has been found for the NCYM model with space-time noncommutativity. It i... | Hubbard operator; Bosonization; Deformation; t-J model | 2001-03 |
| 152 |
 |
Voth, Gregory Alan | Quantitative assessment of the accuracy of centroid molecular dynamics for the calculation of the infrared spectrum of liquid water | A detailed analysis of the infrared lineshapes corresponding to the intramolecular bond vibrations of HOD in either H2O or D2O is presented here in order to quantitatively assess the accuracy of centroid molecular dynamics in reproducing the correct features of the infrared spectrum of water at amb... | 2010 | |
| 153 |
 |
Capecchi, Mario R. | Lack of angiotensin II-facilitated erythropoiesis causes anemia in angiotensin-converting enzyme-deficient mice | While nephrologists often observe reduced hematocrit associated with inhibitors of angiotensin-converting enzyme (ACE), the basis for this effect is not well understood. We now report that two strains of ACE knockout mice have a normocytic anemia associated with elevated plasma erythropoietin level... | 2000 | |
| 154 |
 |
Borodai, Anastasia S. | C-F bond activation | Activation of Carbon-Fluorine Bonds in 2', 3', 4', 5', 6'-Pentafluoroacetophenone through a Transition Metal Complex- Manganese Pentacarbonyl | Carbon; Fluorine; Bond; Activation | 2014-05-30 |
| 155 |
 |
Armentrout, Peter B. | The simplest b 2 + ion: determining its structure from its energetics by a direct comparison of the threshold collision-induced dissociation of protonated oxazolone and diketopiperazine | Energy-resolved collision-induced dissociation of b2 + ions derived from protonated GGG and GAG are compared with that of protonated diketopiperazine (H+DKP). Absolute dissociation cross sections are obtained using a guided ion beam tandem mass spectrometer and analyzed using statistical methods. T... | 2012 | |
| 156 |
 |
Armentrout, Peter B. | The bond energy of ReO+: Guided ion-beam and theoretical studies of the reaction of Re+ (7S) with O2 | The kinetic-energy dependence of the Re+ + O2 reaction is examined using guided ion-beam mass spectrometry. The cross section for ReO+ formation from ground state Re+ (7S) is unusual, exhibiting two endothermic features. The kinetic energy dependence for ReO+ formation is analyzed to determine D0(Re... | 2013-01-01 | |
| 157 |
 |
Sekercioglu, Cagan | The need to quantify ecosystem services provided by birds | What are birds worth-what is their actual dollar value to human society? To most of us in the ornithological community, birds are invaluable. But in these times we need more specific rationales to convince policy makers and business leaders to include bird conservation in land-use and development de... | 2011-01-01 | |
| 158 |
 |
Clayton, Dale H. | New genus and three new species of chewing lice (Phthiraptera: Philopteridae) from Peruvian ovenbirds (Passeriformes: Furnariidae) | The new genus Furnariphilus is described to include three new species from Peruvian hosts within the passerine family Furnariidae, subfamily Furnariinae: F. pagei, the type species of the genus, from Furnarius leucopus Swainson; F. griffithsi from Sclerurus mexicanus Sclater; and F. parkeri from Scl... | Chewing lice; Peruvian ovenbirds; Phthiraptera; Furnariphilus; Ectoparasites; Peru; Furnarius leucopus; Sclerurus mexicanus; Sclerurus caudacutus | 1995 |
| 159 |
 |
Vardeny, Zeev Valentine | Transient spectroscopy of excitons and polarons in C60 films from femtosecond to milliseconds | We have studied photoexcitations in C60 films using transient photomodulation and photoluminescence from 100 fs to 50 ms and absorption-detected magnetic resonance (ADMR). We show that singlet Frenkel excitons are the primary photoexcitations; their recombination kinetics in the picosecond time dom... | Transient spectroscopy; C60 films; Femtoseconds; Milliseconds | 1994-11 |
| 160 |
 |
Miller, Joel Steven | Dinuclear iron(II) complex, [(TPyA)FeII(THBQ 2-)FeII(TPyA)](BF4)2 [TPyA = tris(2-pyridylmethyl)amine; THBQ2- = 2,3,5,6-tetrahydroxy-1,4- benzoquinonate] exhibiting both spin crossover with hysteresis and ferromagnetic exchange | Dinuclear [(TPyA)FeII(THBQ22)FeII(TPyA)](BF4)2 (1) possesses hydrogen bonding interactions that form a 1-D chain, and p-p interactions between the 1-D chains that give rise to a 2-D supramolecular-layered structure, inducing hysteresis in the spin crossover behavior; 1 has shown spin crossover behav... | Dinuclear complexes | 2008 |
| 161 |
 |
Adler, Frederick R. | How virulent should a parasite be to its vector? | Vector-borne parasites are commonly predicted to be less virulent to the vector than to the definitive host as the parasite gains little by harming its main route of transmission. Here we assess the empirical evidence from systems in which insects are vectors for vertebrate, plant, and invertebrate ... | Parasite virulence; Hosts; Vector-borne parasite | 2003 |
| 162 |
 |
DeTar, Carleton | Heavy-light decay constants - MILC results with the Wilson action | We present the current status of our ongoing calculations of pseudoscalar meson decay constants for mesons that contain one light and one heavy quark (fB, fBs , fD, fDs ). We are currently generating new gauge configurations that include dynamical quarks and calculating the decay constants. In add... | Decay constants; Wilson action; Kogut-Susskind quarks; Staggered quarks; Chiral extrapolation | 1998-01 |
| 163 |
 |
Wu, Yong-Shi | Quantized spin Hall effect in 3He-A and other p-wave paired Fermi systems | In this paper, we propose the quantized spin Hall effect (SHE) in the vortex state of a rotating p-wave paired Fermi system in an inhomogeneous magnetic field and in a weak periodic potential. It is the three-dimensional extension of the spin Hall effect for a 3He-A superfluid film previously stud... | Fermi systems; Spin Hall conductance | 2008-04 |
| 164 |
 |
Mattis, Daniel C.; Sutherland, Bill | Strange solutions to field theories in one spatial dimension | Many models of interacting particles rely heavily for their solution on restriction to one-dimensional motion and a linearized kinetic energy. We examine this in detail, and find that the linearization can lead to patently strange and possible spurious solutions in first quantization. The usual, co... | Eigenstates; Field theories | 1981 |
| 165 |
 |
Goller, Franz | Low-dimensional dynamical model for the diversity of pressure patterns used in canary song | During song production, oscine birds produce large air sac pressure pulses. During those pulses, energy is transferred to labia located at the juncture between the bronchii and the trachea, inducing the high frequency labial oscillations which are responsible for airflow modulations, i.e., the utt... | Serinus canarias; Air sac pressure | 2009-04 |
| 166 |
 |
Morse, Michael David | ???X??+ band systems of jet-cooled ScCo and YCo | Rotationally resolved resonant two-photon ionization (R2PI) spectra of ScCo and YCo are reported. The measured spectra reveal that these molecules possess ground electronic states of 1?+ symmetry, as previously found in the isoelectronic Cr2 and CrMo molecules. The ground state rotational constant... | 2010 | |
| 167 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Forthcoming attractions | Magnets made from molecules and ions having spins in p orbitals have only been discovered in the past decade. Their solubility in organic solvents and room temperature manufacture means that they should find a variety of applications. | Electron; Temperature; Magnets | 1994 |
| 168 |
 |
Keller, Robert M. | Denotational models for parallel programs with indeterminate operators | Several approaches to networks of concurrently-operating modules involving indeterminacy are discussed. Techniques for representing the denotational semantics of such networks, and for verifying properties of them, are presented, including an oracle approach, an axiomatic approach, a data-type reduc... | Denotational models; Indeterminate operators | 1977 |
| 169 |
 |
Goller, Franz | Synthesizing bird song | In this work we present an electronic syrinx: an analogical integrator of the equations describing a model for sound production by oscine birds. The model depends on time varying parameters with clear biological interpretation: the air sac pressure and the tension of ventral syringeal muscles. We te... | Syrinx; Tension; Transducer | 2005 |
| 170 |
 |
Miller, Joel Steven | Two-dimensional molecular-based ferrimamagnets incorporating decamethylmetallocenium cations | Four new molecular-based magnets have been synthesized, and their magnetic properties have been investigated in detail. Their formulae are [M'(C5Me5)2]2M2[Cu(opba)]3.(DMSO)x(H20)y with M' = Fe, M = Mn, x = 5, y = 4 (1), M' = Fe, M = Co, x = 6, y = 4 (2), M' = Co, M = Mn, x = 5.5, y = 4 (3) and M' = ... | Magnetic; Compounds | 1996 |
| 171 |
 |
Adler, Frederick R. | Genetic and phylogenetic consequences of island biogeography | Island biogeography theory predicts that the number of species on an island should increase with island size and decrease with island distance to the mainland. These predictions are generally well supported in comparative and experimental studies. These ecological, equilibrium predictions arise as a... | Extinction; Genetic divergence; Island isolation; Migration; Speciation | 2000 |
| 172 |
 |
Morse, Michael David | Spectroscopic studies of jet-cooled CuAg | Resonant two-photon ionization spectroscopy has been applied to jet-cooled diatomic CuAg. Four band systems have been observed, three of which have been rotationally resolved and analyzed. The ground state is X ??+ in symmetry, deriving from the 3d??cu4d??Ag?? molecular configuration. Its bond lengt... | 1991 | |
| 173 |
 |
Mattis, Daniel C. | Multicomponent polaron | By a slight modification of the Fröhlich Hamiltonian (the introduction of an internal quantum number) we reduce the polaron problem to the solution of a continued fraction, even at finite temperature. We analyze both the stationary states and the resonances (in one- and three-dimensional versions o... | Ground-state energy; Coupling constant; Fröhlich model; Finite temperature | 1991-10 |
| 174 |
 |
DeTar, Carleton | Continuum limit in the quenched approximation | Previous work at G/g2 = 5.7 with quenched staggered quarks is extended with new calculations at 5.85 and 6.15 on lattices up to 323 x 64. These calculations allow a more detailed study of extrapolation in quark mass, finite volume and lattice spacing than has heretofore been possible. We discuss h... | Decay constants; Staggered quarks; Wilson quarks | 1996-03 |
| 175 |
 |
Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. | Phonon spectroscopy in π-conjugated polymers; the role of the excited electronic states | The Raman active vibrational modes in 7r-conjugated polymers are known to have different frequencies in different types of experiments. The best known examples are the resonant Raman scattering (RRS) and doping or photoinduced absorption infrared active vibrations (IRAV) measurements, in which the s... | pi-conjugated polymers; Phonon spectroscopy; Resonant Raman scattering; ir-active phonons | 1997 |