Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 151 |
 |
Wu, Yong-Shi | Chiral bosonization and local Lorentz-invariant actions for chiral bosons | We formulate a geometrical theory of self-dual scalar fields in two dimensions with a local Lorentz-invariant action. Path-integral quantization is used to derive chiral bosonization by demonstrating equivalence of correlation functions of currents and energy-momentum tensors in our theory with thos... | Bosonization; String theory; Weyl fermions | 1988-06 |
| 152 |
 |
DeTar, Carleton | Static hybrid quarkonium potential with improved staggered quarks | We are studying the effects of light dynamical quarks on the excitation energies of a flux tube between a static quark and antiquark. We report preliminary results of an analysis of the ground state potential and the ∑g′+ and Πu potentials. We have measured these potentials on closely matched... | Quarkonium; Staggered quarks; Flux tube | 2003-05 |
| 153 |
 |
Simpson, Jamesina J. | An efficient stochastic approach to uncertainty quantification in 3-D FDTD magnetized cold plasma | An efficient stochastic finite-difference time-domain (S-FDTD) method is developed to analyze electromagnetic field variability in three dimensional anisotropic magnetized plasma. The new S-FDTD plasma model provides a full understanding of the true physics due to the associated uncertainties and ha... | 2014-01-01 | |
| 154 |
 |
Sarofim, Adel F.; Pugmire, Ronald J. | 13C NMR analysis of soot produced from model compounds and a coal | Soot samples, including the associated organics, produced from an Illinois No. 6 coal (five samples) and two model compounds, biphenyl (three samples) and pyrene (two samples), have been studied by 13C NMR methods. The coal soot data served as a guide to selection of the temperature range that would... | 13C NMR; Biphenyl; Aromatic cluster size | 2001 |
| 155 |
|
Smith, Grant D. | Molecular dynamics of a 1,4-polybutadiene melt. Comparison of experiment and simulation | We have made detailed comparison of the local and chain dynamics of a melt of 1,4-polybutadiene (PBD) as determined from experiment and molecular dynamics simulation at 353 K. The PBD was found to have a random microstructure consisting of 40% cis, 50% trans, and 10% 1,2-vinyl units with a number-av... | Polybutadiene melt; Molecular dynamics | 1999 |
| 156 |
|
National Medals of Science and Technology Awards (2001) Ceremony and Banquet, held June 13, 2002 | This 51 minutes, 5 seconds video is divided into two parts: the first part is a film introducing the award winners and their achievements; the second is the presentation of the actual awards by George W. Bush, President of the United States. Medal winners were: Mario R. Capecchi for his pioneering... | Molecular genetics; Gene targeting; Transgenic mice; Gene expression; Genetic engineering; Capecchi, Mario R.; Science - Awards - United States; Awards presentations | 2002 | |
| 157 |
|
Hawkes, Kristen | Ovarian follicle loss in humans and mice: lessons from statistical model comparison | Menopause is triggered by the number of ovarian follicles falling below a threshold number and is irreversible because oogonial stem cells disappear after birth. Since it is the result of programmed disappearance of a limited store of follicles, menopause can be predicted using mathematical models b... | Age; Follice; Mathematical; Model; Menopause; Ovary | 2010-01-01 |
| 158 |
|
Gerig, Guido | Quantitative tract-based white matter development from birth to age 2 years | Few large-scale studies have been done to characterize the normal human brain white matter growth in the first years of life. We investigated white matter maturation patterns in major fiber pathways in a large cohort of healthy young children from birth to age two using diffusion parameters fraction... | White matter maturation; Axonal myelination; Early brain development; Diffusion properties; DTI atlas; Fiber tracking; Functional regression analysis | 2012-01-01 |
| 159 |
|
Gerig, Guido | Simulation of brain tumors in MR images for evaluation of segmentation efficacy. | Obtaining validation data and comparison metrics for segmentation of magnetic resonance images (MRI) are difficult tasks due to the lack of reliable ground truth. This problem is even more evident for images presenting pathology, which can both alter tissue appearance through infiltration and cause ... | Brain MRI; Segmentation validation; Tumor simulation; Simulation of tumor infiltration; Diffusion tensor imaging; Ground truth; Gold standard | 2009-01-01 |
| 160 |
|
Gerig, Guido | Prenatal isolated mild ventriculomegaly is associated with persistent ventricle enlargement at ages 1 and 2 | Background-Enlargement of the lateral ventricles is thought to originate from abnormal prenatal brain development and is associated with neurodevelopmental disorders. Fetal isolated mild ventriculomegaly (MVM) is associated with enlargement of lateral ventricle volumes in the neonatal period and dev... | Magnetic resonance imaging; Ultrasound; Gray matter; White matter; Cognitive development | 2012-01-01 |
| 161 |
 |
Armentrout, Peter B. | Spin-orbit state-selected reactions of Kr+(2P3/2 and 2P1/2) with H2, D2, and HD from thermal energies to 20 eV c.m. | Spin-orbit state-selected reactions of K r + (2Pj), J = 3/2 and / = 1/2, with isotopic molecular hydrogen (H2 , D2 , and HD) to form KrH+ and Kr D+ are investigated using guided ion beam techniques. Reaction cross sections for each spin-orbit state are measured as a function of the relative trans... | Spin-orbit; Krypton ions; Hydrogen isotopes; Isotope effects; Potential energy surfaces; Ion-molecule reactions | 1986 |
| 162 |
 |
Warner, Homer R. | The Distribution and Disposal of Cortisol in Humans | Biomedical Informatics | 1964 | |
| 163 |
 |
Lombardo, Nancy T.; Le Ber, Jeanne M.; Morrow, Anne | Rethinking Mobile Delivery: Using Quick Response Codes to Access Information at Point of Need | This poster covers the use of quick response (QR) codes to provide instant mobile access to information, digital collections, educational offerings, the library website, subject guides, text messages, videos, and personnel in the library. The authors explain the array of uses and the value of using ... | library services, mobile delivery, point-of-need access, QR codes | 2011-05-06 |
| 164 |
 |
Mishchenko, Eugene | Spin Hall edge spin polarization in a ballistic 2D electron system | Universal properties of the spin Hall effect in ballistic 2D electron systems are addressed. The net spin polarization across the edge of the conductor is second order, ~λ2, in spin-orbit coupling constant independent of the form of the boundary potential, with the contributions of normal and evan... | Spin- Hall effect | 2007-09 |
| 165 |
|
Gerig, Guido | Diffusion imaging quality control via entropy of principal direction distribution | Diffusion MR imaging has received increasing attention in the neuroimaging community, as it yields new insights into the microstructural organization of white matter that are not available with conventional MRI techniques. While the technology has enormous potential, diffusion MRI suffers from a uni... | Diffusion magnetic resonance imaging; Diffusion tensor imaging; Quality assessment; Entropy | 2013-01-01 |
| 166 |
 |
Morse, Michael David | Interaction of an aluminum atom with an alkaline earth atom: spectroscopic and ab initio investigations of AICa | A spectroscopic analysis of diatomic AlCa generated by laser vaporization of a 2:1 AI:Ca metal alloy followed by supersonic expansion has been completed using resonant two-photon ionization spectroscopy. Four excited electronic states have been identified and investigated in the energy region from 1... | 1994 | |
| 167 |
 |
Wight, Charles Albert | Thermal analysis of high explosives: liquid state decomposition of RDX | Nonisothermal thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) have been applied to the thermal decomposition of RDX. Model-free isoconversional analysis of TGA and DSC traces show that RDX primarily evaporates in an open pan with an activation energy of Eα -100 kJ ... | RDX; Plastic explosives; Decomposition; Thermogravimetric analysis; Differential scanning calorimetry | 2000 |
| 168 |
 |
Regehr, John; Pagariya, Rohit Pannalalji | Direct equivalence testing | Testing embedded software is difficult. • Further complicated by presence of memory and type safety errors in software. • Compiler contain various known bugs. Developers are skeptical to upgrade the compilers. • Is your embedded software affected by memory safety and compilation erro... | ||
| 169 |
 |
Simpson, Jamesina J. | Super-enhanced optical energy concentration through a subwavelength aperture using a photonic nanojet | Optical transmission through resonant subwavelength apertures in optically thick metal films have received an explosion of interest for their ability to overcome the diffraction limit of light and concentrate light efficiently into a subwavelength volume. This achievement has attracted the use of su... | 2014-01-01 | |
| 170 |
 |
Mattis, Daniel C. | Exact solution of a many-fermion system and its associated boson field | Luttinger's exactly soluble model of a one-dimensional many-fermion system is discussed. We show that he did not solve his model properly because of the paradoxical fact that the density operator commutators [p(p), p(-p')], which always vanish for any finite number of particles, no longer vanish in ... | Many-electron problem; Fermi surface; Boson field; Dirac sea | 1965 |
| 171 |
 |
Carrier, David R. | Electromyographic pattern of the gular pump in monitor lizards | Gular pumping in monitor lizards is known to play an important role in lung ventilation, but its evolutionary origin has not yet been addressed. To determine whether the gular pump derives from the buccal pump of basal tetrapods or is a novel invention, we investigated the electromyographic activity... | Electromyographic pattern; Gular pump; Varanus exanthematicus; Lung ventilation; Evolution | 2001 |
| 172 |
 |
Ailion, David Charles | Commensurability and defect-induced phason gaps in incommensurate systems | The phason energy gap has been observed to increase on going from the incommensurate to higher-order commensurate phases in the "devil's staircase" compound [N(CH3)4]2ZnCl4. The gap was determined via the phason-induced 1 4N spin-lattice relaxation contribution, which was obtained from the variati... | Phasons; Commensurate; Incommensurate; Lattices; Modulation | 1985 |
| 173 |
 |
Chatterjee, Niladrish; Balasubramonian, Rajeev; Davis, Alan L. | Rethinking DRAM design and organization for energy-constrained multicores | DRAM vendors have traditionally optimized for low cost and high performance, often making design decisions that incur energy penalties. For example, a single conventional DRAM access activates thousands of bitlines in many chips, to return a single cache line to the CPU. The other bits may be access... | DRAM power consumption; Data-center power; Multicore memory; Trapeze Interactive Poster | 2010-03-15 |
| 174 |
 |
Thomas, Kirk R.; Capecchi, Mario R. | High-fidelity gene targeting in embryonic stem cells by using sequence replacement vectors. | Mutations were targeted to the Hprt locus in murine embryonic stem cells by using sequence replacement vectors. When the vector was designed such that the mutated sequences were flanked on both sides by several kilobases of DNA homologous to the target locus, replacement of chromosomal sequences wit... | Drug Resistance; Gene Rearrangement; Gentamicins | 1992-07 |
| 175 |
 |
Adler, Frederick R. | Super- and coinfection: filling the range | How many different strains of a disease can coexist in a single population of hosts? What effect do different mechanisms of coexistence have on the properties of diseases? The principle of competitive exclusion (Armstrong and McGehee 1980; Levin 1970) states that no more species can coexist in a sys... | Superinfection; Virulence; Coexistence | 2002 |