Filters: Collection:"ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 126 |  | Olivera, Baldomero M.; Hillyard, David R.; Gray, William Robert | ĸ-Conotoxin PVIIA is a peptide inhibiting the Shaker K+ channel | ĸ-Conotoxin PVIIA (k-PVIIA), a 27-amino acid toxin from Conus purpurascens venom that inhibits the Shaker potassium channel, was chemically synthesized in a biologically active form. The disulfide connectivity of the peptide was determined. ĸ-Conotoxin PVIIA has the following structure. | Conotoxins; k-Conotoxin PVIIA; Conus purpurascens | 1998 |
| 127 |  | Olivera, Baldomero M.; ; McIntosh, J. Michael | α-Conotoxin AuIB selective blocks α3ß4 nicotinic acetylcholine receptors and nicotine-evoked norepinephrine release | Neuronal nicotinic acetylcholine receptors (nAChRs) with putative α3ß4-subunits have been implicated in the mediation of signaling in various systems, including ganglionic transmission peripherally and nicotine-evoked neurotransmitter release centrally. However, progress in the characterization of... | Conotoxins; a-Conotoxin AuIB; Norepinephrine release | 1998 |
| 128 |  | Olivera, Baldomero M.; Gray, William Robert; Hillyard, David R. | μ-Conotoxin PIIIA, a new peptide for discriminating among tetrodotoxin-sensitive Na channel subtypes | We report the characterization of a new sodium channel blocker, m-conotoxin PIIIA (m-PIIIA). The peptide has been synthesized chemically and its disulfide bridging pattern determined. | Conotoxins; m-Conotoxin PIIIA; Sodium channel blockers | 1998 |
| 129 |  | Ogburn, Joyce L. | Acquiring minds want to know: how many librarians would it take... | Acquiring Minds Want to Know column: "I thought for a change I would add a little humor to my column and play around with a variation of the old joke "how many librarians does it take to change a light bulb." The impetus for this came when I was writing a presentation on integrating electronic mater... | Librarians, humor; Library acquisitions, humor | 1998-12 |
| 130 |  | Wu, Yong-Shi | Brane creation in M(atrix) theory | We discuss, in the context of M(atrix) theory, the creation of a membrane suspended between two longitudinal five-branes when they cross each other. It is shown that the membrane creation is closely related to the degrees of freedom in the off-diagonal blocks which are related via dualities to the ... | 1998-02 | |
| 131 |  | DeTar, Carleton | Continuum limit of lattice QCD with staggered quarks in the quenched approximation: a critical role for the chiral extrapolation | We calculate the light quark spectrum of lattice QCD in the quenched approximation using staggered quarks. We take the light quark mass, infinite volume, continuum limit. With nonlinear chiral extrapolations, we find that the nucleon to p mass ratio is mN/mp = 1.254 + 0.018 + 0.028, where the err... | Staggered quarks; Chiral extrapolations | 1998-10 |
| 132 |  | Vardeny, Zeev Valentine | Cooperative and stimulated emission in poly(p-phenylene-vinylene) thin films and solutions | We discuss cooperative and stimulated emissions and separate their respective contributions to the emission spectral narrowing in thin films and solutions of poly(p-phenylene-vinylene) derivatives. Whereas cooperative radiation is favored in films with poor optical confinement, directional stimula... | pi-conjugated polymers; PPV; Spectral narrowing | 1998-04 |
| 133 |  | DeTar, Carleton | Critical behavior at the chiral phase transition | It is generally expected that two-flavor QCD undergoes a high temperature chiral symmetry restoring phase transition at zero quark mass, with O(4) critical behavior[1]. Verifying this expectation is important for understanding the phenomenology of the transition and for facilitating an extrapolation... | Phase transitions; Staggered fermions | 1998-04 |
| 134 |  | Nelson, Christopher | Doctor is in | Do you feel abandoned in a hospital full of doctors? Is there a single physician coordinating care? A new trend in health care may hold the solution for patients with many specialists within the hospital. An emerging group of doctors known as "Hospitalists" is being used by hospitals around the coun... | Hospitalists; Primary Care Physician; Specialists | 1998-12 |
| 135 |  | Varner, Michael W. | Elevated second-trimester maternal serum hCG: a marker of inadequate angiogenesis. | OBJECTIVE: To measure angiogenin, a potent inducer of neovascularization and interleukin-6, as an indicator of acute inflammation, in second-trimester amniotic fluid of patients with elevated maternal serum hCG. METHODS: In this case-control study, 20 patients with elevated maternal serum hCG (at le... | Angiogenesis Inducing Agents; Interleukin-6; Pregnancy Complications; hCG | 1998-04 |
| 136 |  | 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 |
| 137 |  | Liu, Feng | Hydrogen induced Si surface segregation on Ge-covered Si(001) | Using Fourier transform infrared-attenuated total reflectance spectroscopy in conjunction with hydrogen adsorption to probe surface layer composition, we observe a reversible place exchange between Ge and Si on Ge-covered Si(001) when the surface is dosed with atomic H at elevated temperatures. F... | Si surface segregation; Ge-covered; Si(001) | 1998-10 |
| 138 |  | Gondolo, Paolo | Indirect detection of dark matter in km-size neutrino telescopes | Neutrino telescopes of kilometer size are currently being planned. They will be two or three orders of magnitude bigger than presently operating detectors, but they will have a much higher muon energy threshold. We discuss the trade-off between area and energy threshold for indirect detection of neu... | Neutrino telescopes; Energy threshold; Neutralino annihilations; Supersymmetric models | 1998-11 |
| 139 |  | Olson, Randall J.; Crandall, Alan S.; Caldwell, Karin D.; Jensen, Michael K. | Intraoperative crystallization on the intraocular lens surface | PURPOSE: To report a physician survey, laboratory studies, and clinical observations of intraoperative crystallization on the surface of the intraocular lens (IOL). METHOD: We sent a survey to all ophthalmologists in the states of Wyoming, Idaho, Montana, Utah, and Colorado asking whether crystalliz... | Cataract Extraction; Intraoperative Complications; Risk Factors | 1998-08 |
| 140 |  | DeTar, Carleton | Light hadron spectrum - MILC results with the Kogut-Susskind and Wilson actions* | We present the current status of our ongoing calculations of the light hadron spectrum with both Kogut-Susskind (KS) and Wilson quarks in the valence or quenched approximation. We discuss KS quarks first and find that the chiral extrapolation is potentially the biggest source of systematic error. F... | Staggered quarks; Hadron spectrum; Kogut-Susskind quarks; Wilson quarks; Chiral extrapolation | 1998-01 |
| 141 |  | DeTar, Carleton | Light quark spectrum with improved gauge and fermion actions | We report on a study of the light quark spectrum using an improved gauge action and both Kogut-Susskind and Naik quark actions. We have studied six different lattice spacings, corresponding to plaquette couplings ranging from 6.8 to 7.9, with five to six quark masses per coupling. We compare the t... | Quark spectrum; Kogut-Susskind quarks; Naik quarks | 1998-04 |
| 142 |  | Gondolo, Paolo | Limits on R-parity violation from cosmic ray antiprotons | We constrain the hadronic R-parity violating couplings in extensions to the minimal supersymmetric standard model. These interactions violate baryon and lepton number, and allow the lightest superpartner (LSP) to decay into standard model particles. The observed flux of cosmic ray antiprotons plac... | R-parity; Supersymmetric models | 1998-06 |
| 143 |  | Varner, Michael W. | Maternal mortality in Utah. | OBJECTIVE: To determine trends in maternal deaths in Utah, identify opportunities for preventive intervention, and analyze the mechanism of reporting maternal deaths. METHODS: A retrospective review was performed of maternal death certificates and medical records in Utah from January 1, 1982, throug... | Maternal Death; Utah; Pregnancy; Trauma; Pulmonary Emboliam; Maternal Cardiac Disease | 1998-02 |
| 144 |  | Liu, Feng | Modification of Si(001) substrate bonding by adsorbed Ge or Si dimer islands | High-resolution scanning tunneling microscopy studies of the Si(100)-(2 X 1) surface show a heretofore unrecognized distortion of the substrate structure when islands form during the initial stage of growth of either Si or Ge. The distortion, reflecting the influence of strain, extends at least thre... | Si(001); Adsorbed Ge; Adsorbed Si; Dimer islands; Substrate bonding; Distortion | 1998-09 |
| 145 |  | Stark, Cynthia A. | More than victims: battered women, the syndrome society, and the law (Book Review) | Review of the book "More than Victims: Battered Women, the Syndrome Society, and the Law" by Donald Alexander Downs. | Books; Philosophy; Domestic Violence | 1998-07 |
| 146 |  | Gondolo, Paolo | Neutralino decay rates with explicit R-parity violation | We compute the neutralino decay rate in the minimal supersymmetric standard model with the addition of explicit R-parity violation. We include the complete squark and slepton mixing matrices, previously neglected, and we improve and correct published formulas. These decays are relevant to accelerat... | Neutralinos; R-parity; Decay rates; Sfermions | 1998-03 |
| 147 |  | Wu, Yong-Shi | Noncommutative gauge theories in matrix theory | We present a general framework for matrix theory compactified on a quotient space Rn/G, with G a discrete group of Euclidean motions in R". The general solution to the quotient conditions gives a gauge theory on a noncommutative space. We characterize the resulting noncommutative gauge theory in t... | Matrix theory; Noncommutative space | 1998-09 |
| 148 |  | Wiessner, Pauline W. | On emergency decisions, egalitarianism, and group selection | Boehm (CA 37:763-93) puts forward an important thesis-that with the evolution of egalitarian societies, privileged routes to reproductive advantage are blocked and the power of individua selection severely compromised. With competition so constrained, altruistic behavior can more readily spread i... | Boehm's mode; Evolution of altruistic behavior | 1998-06 |
| 149 |  | Wiessner, Pauline W. | On network analysis: the potential for understanding (and misunderstanding) !Kung Hxaro | Schweizer's social network analysis (CA 38: 739-52) of gift giving among the !Kung San (Ju/'hoansi) demonstrates most elegantly how individual strategies, guided by basic cultural rules, coalesce to form a regional system. Complex connections in the network that defied description with simpler anayt... | Density of kinship; Nonsymmetry; Ethnohistorica | 1998-08 |
| 150 |  | Catinella, A. Peter; Nelson, Linda L.; Butler, Sam; Gerwels, John W. | Opinion: have health-care professionals lost control of a medical system that increasingly relies upon non-medical gatekeepers? | Proposed legislation intended to protect patients in managed health-care plans, known as the Patient Bill of Rights, raises what some consider a larger question: Have health-care professionals lost control of a medical system that increasingly relies upon non-medical gatekeepers? | HMO'S; Managed Care; Health Care Costs | 1998-12 |