Filters: Collection:"ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 151 |  | Wu, Yong-Shi | P-p′ strings in M(atrix) theory | We study the off-diagonal blocks in the M(atrix) model that are supposed to correspond to open strings stretched between a Dp-brane and a Dp′-brane. It is shown that the spectrum, including the quantum numbers, of the zero modes in the off-diagonal blocks can be determined from the index theorem a... | 1998-08 | |
| 152 |  | DeTar, Carleton | Quenched hadron spectroscopy with improved staggered quark action | We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus standard quark action. Most of the improvement ... | Staggered quarks; Chiral symmetry; Flavor symmetry | 1998-07 |
| 153 |  | Research in brief: Winter 1998 | Summaries of Selected Research Projects at the University of Utah Health Sciences Center | Research: School of Medicine, College of Pharmacy;, College of Nursing, College of Health | 1998-12 | |
| 154 |  | Wu, Yong-Shi | Schrödinger-like equation for a nonrelativistic electron in a photon field of arbitrary intensity | The Schrödinger equation with minimal coupling for a nonrelativistic electron interacting with a single-mode photon field is not satisfied by the nonrelativistic limit of the exact solutions to the corresponding Dirac equation. A Schrödinger-like equation valid for arbitrary photon intensity is d... | Photon field; Nonrelativistic electron | 1998-07 |
| 155 |  | Liu, Feng | Self-organization of steps in growth of strained films on vicinal substrates | Computer simulations show that if stress is present, steps on a vicinal surface can self-organize into a regular array of step bunches. Such self-organization can provide templates for subsequent fabrication of "quantum wire" nanostructures. The size and spacing of the bunches can be controlled inde... | Self-organization; Strained films; Growth; Vicinal substrates; Step bunches | 1998-02 |
| 156 |  | Newton, Maria | Senior olympians' achievement goals and motivational responses | The purpose of this study was to examine the motivational perspectives of athletes participating in the Senior Olympic Games. One hundred thirty-seven senior athletes (54 males, 82 females, and 1 nonidentifier) completed measures of goal orientations, beliefs about the causes of success in sport, in... | Senior olympics; Athletes; Intrinsic motivation | 1998-07 |
| 157 |  | Sample, Susan | Shattering stereotypes: aging adults aren't naturally unhappy | Healthy older adults ramain engaged and interested in life. Just because they're aging doesn't mean they lose interest in life. "In this culture, we have a perception of what it's like to grow old: life isn't a whole lot of fun" We have an image of older adults whose faces are lined with fatigue as ... | Aging Adults; Depression; Geriatrics | 1998-12 |
| 158 |  | DeTar, Carleton | String breaking in lattice quantum chromodynamics | The separation of a heavy quark and antiquark pair leads to the formation of a tube of flux, or string, which should break in the presence of light quark-antiquark pairs. This expected zero temperature phenomenon has proven elusive in simulations of lattice QCD. We present simulation results that sh... | String breaking; Antiquarks; Polyakov loop; Dynamical fermions | 1998-12 |
| 159 |  | Swallow, Charles E.; Tsuruda, Jay S.; Digre, Kathleen B.; Glaser, Matthew J.; Davidson, H. Christian; Harnsberger, H. Ric | Terson syndrome: CT evaluation in 12 patients. | PURPOSE: Terson syndrome may be overlooked in the acute setting and often requires ophthalmologic intervention to prevent long-term visual loss. In this syndrome, vitreous or retinal hemorrhage results from an abrupt rise in intracranial pressure, leading to retinal venous hypertension and intraocul... | Retinal Hemorrhage; Visual Acuity; Vitreous Hemorrhage | 1998-04 |
| 160 |  | Wu, Yong-Shi | Thermal activation of quasiparticles and thermodynamics of fractional quantum Hall liquids | Quasielectrons and quasiholes in the fractional quantum Hall liquids obey fractional (including nontrivial mutual) exclusion statistics. Their statistics matrix can be determined from several possible state-counting schemes, involving different assumptions on statistical correlations. Thermal activ... | Quasielectrons; Quasiholes; Exclusion statistics | 1998-04 |
| 161 |  | Wu, Yong-Shi | Towards a noncommutative geometric approach to matrix compactification | In this paper we study generic M(atrix) theory compactifications that are specified by a set of quotient conditions. A procedure is proposed which both associates an algebra to each compactification and leads deductively to general solutions for the matrix variables. The notion of noncommutative g... | Matrix theory; Compactification; Noncommutativity; Orbifolds; Orientifolds; Spacetime; Klein bottle; Gauge theory; Torus | 1998-07 |
| 162 |  | Thalos, Mariam G. | Trouble with superselection accounts of measurement | Argues that the superselection accounts of measurement exploit excess structure illegitimately and in the process become self-contradictory. Superselection rule in the quantum-mechanical treatment of phenomena; Representation of indicator states of detectors by eigenspaces of superselection operatio... | Superselection; Quantum mechanics | 1998-11 |
| 163 |  | Wu, Yong-Shi | Type-IIB-string-M-theory duality and longitudinal membranes in M(atrix) theory | In this paper we study duality properties of the M(atrix) theory compactified on a circle. We present evidence for the equivalence of this theory to the strong coupling limit of type-IIB string theory compactified on a circle. In the M(atrix) theory context, our evidence for this duality consists of... | Matrix theory; Longitudinal membranes; Compactification; String theory; Duality | 1998-02 |
| 164 |  | DeTar, Carleton | Update on the hadron spectrum with two flavors of staggered quarks | We present an update on the MILC Collaboration's light hadron spectrum calculation with two flavors of dynamical, staggered quarks. Results are presented for gauge couplings 5.30, 5.415, 5.50 and 5.60, with a range of quark masses for each value of the coupling. We present extrapolations of mN/mp ... | Staggered quarks; Hadron spectrum | 1998-04 |
| 165 |  | Cashdan, Elizabeth A. | Why is testosterone associated with divorce in men? | There is evidence that in women high levels of testosterone are associated with more sexual partners and more permissive sexual attitudes. If a similar relationship holds true for men, the higher basal testosterone levels of divorced and unmarried men may be caused by this relationship rather than b... | Marriage; Separation; Hormones; Sexuality | 1998-06 |
| 166 |  | Zhang, Lixin | A DRAM backend for the impulse memory system | The Impulse Adaptable Memory System exposes DRAM access patterns not seen in conventional memory systems. For instance, it can generate 32 DRAM accesses each of which requests a four-byte word in 32 cycles. Conventional DRAM backends are optimized for accesses that request full cache lines. They m... | Impulse Adaptable Memory System; DRAM | 1998-12-16 |
| 167 |  | Harrison, Reid R. | Analog VLSI model of the fly elementary motion detector | Flies are capable of rapidly detecting and integrating visual motion information in behaviorly-relevant ways. The first stage of visual motion processing in flies is a retinotopic array of functional units known as elementary motion detectors (EMDs). Several decades ago, Reichardt and colleagues de... | 1998-01-01 | |
| 168 |  | Gouw, Launce G.; McKenna, Catherine K.; Digre, Kathleen B.; Placek, Louis J. | Analysis of the dynamic mutation in the SCA7 gene shows marked parental effects on CAG repeat transmission. | The gene for spinocerebellar ataxia 7 (SCA7) includes a transcribed, translated CAG tract that is expanded in SCA7 patients. We have determined expansions in 73 individuals from 17 SCA7 kindreds and compared them with repeat lengths of 180 unaffected individuals. Subjects with abnormal expansions co... | Genetics; Biosynthesis; SCA7 Gene | 1998-03-07 |
| 169 |  | Furse, Cynthia M.; Lazzi, Gianluca; Gandhi, Om P. | Comparison of FDTD computed and measured radiation patterns of commercial mobile telephones in presence of the human head | In this letter, finite-difference time-domain (FDTD) computed radiation patterns of mobile telephones are carefully compared with those measured in our laboratory. The question on the capability of the FDTD method to correctly predict the radiated electromagnetic fields of today's structurally comp... | FDTD; Finite-difference time-domain; Mobile antennas | 1998-01-01 |
| 170 |  | Furse, Cynthia M.; Gandhi, Om P. | Computations of SAR distributions or two anatomically based models of the human head using CAD files of commercial telephones and the parallelized FDTD code | A method for importing data from computer-aided design (CAD) files for a mobile telephone into finite-difference time-domain (FDTD) simulation software is described. Although the FDTD method is well suited for the bio-electromagnetic simulations and has become the method of choice for most research... | Specific absorption rates; SAR; CAD files; FDTD; Finite-difference time-domain | 1998-01-01 |
| 171 |  | Capecchi, Mario R. | Detection of targeted GFP-Hox gene fuogenesissions during mouse embry. | The ability to use a vital cell marker to study mouse embryogenesis will open new avenues of experimental research. Recently, the use of transgenic mice, containing multiple copies of the jellyfish gene encoding the green fluorescent protein (GFP), has begun to realize this potential. Here, we show ... | Chimera; Crosses, Genetic; Gestational Age; Green Fluorescent Proteins; Mice, Inbred C57BL; Phenotype | 1998-10-27 |
| 172 |  | Jewell, Paul | Geochemical variations in an alpine lake and watershed underlain by siliciclastic bedrock, Uinta Mountains, Utah | A small watershed which includes several small lakes in the Uinta Mountains of northern Utah is underlain by monolithologic Precambrian siliciclastic rock with extremely limited buffering capacity. In spite of this, s\ stematic spatial and temporal variations in alkalinity, pH, and major elements oc... | 1998-01-01 | |
| 173 |  | Capecchi, Mario R. | Hox group 3 paralogs regulate the development and migration of the thymus, thyroid, and parathyroid glands. | The thymus, thyroid, and parathyroid glands in vertebrates develop from the pharyngeal region, with contributions both from pharyngeal endoderm and from neural crest cells in the pharyngeal arches. Hoxa3 mutant homozygotes have defects in the development of all three organs. Roles for the Hoxa3 para... | Animals, Newborn; Calcitonin; Ectoderm; Gene Dosage; Genotype; Mice, Mutant Strains; Phenotype | 1998-03-01 |
| 174 |  | Capecchi, Mario R. | Hoxc13 mutant mice lack external hair | Hox genes are usually expressed temporally and spatially in a colinear manner with respect to their positions in the Hox complex. Consistent with the expected pattern for a paralogous group 13 member, early embryonic Hoxc13 expression is found in the nails and tail. Hoxc13 is also expressed in vibri... | Filiform papillae; Homozygotes; Paralogous | 1998-01-01 |
| 175 |  | Spencer S. Eccles Health Sciences Library, University of Utah | IAIMS Newsletter Fall 1998 | The IAIMS Newsletter is published three times a year (August, January, May) with one InfoFair supplement and provides valuable information about Library activities and resources as well as informative articles related to information technology. | IAIMS | 1998-08-12 |