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Creator | Title | Description | Subject | Date |
26 |
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Olivera, Baldomero M. | DNA-topoisomerase modification | The first reports of topoisomerase modification were published in 1982 and 1983 (Mills et al. 1982; Durban et al. 1983; Ferro et al. 1983; Jongstra-Bilen et al. 1983). Although a wide variety of posttranslational modifications of DNA topoisomerases may occur, this chapter focuses only on phosphoryl... | Poly(ADP-ribosylation); Serine residues | 1990 |
27 |
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Evans, John | DPOS programming manual | This manual describes the basic concepts of the DPOS Metalanguage and the programming language DPOS Scheme. | DPOS; Programming manual | 1990 |
28 |
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Kessler, Robert R. | DPOS: A metalanguage and programming environment for parallel processors | The complexity and diversity of parallel programming languages and computer architectures hinders programmers in developing programs and greatly limits program portability. All MIMD parallel programming systems, however, address common requirements for process creation, process management, and inte... | DPOS; MIMD parallel programming | 1990 |
29 |
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Mattis, Daniel C. | Dynamics of quasiparticles in the two-dimensional Hubbard model | The Hubbard model at half-filling is a collective, antiferromagnetic insulator. We study added electrons or holes. The insulating energy gap and the dispersion of the added carriers are calculated variationally in two dimensions with use of a Monte Carlo evaluation of the electronic correlation f... | Dispersion; Electrons; Carriers | 1990 |
30 |
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Liu, Feng | Effect of size and dimensionality on the magnetic moment of transition metals | The effect of size and dimensionality on the magnetic moments of Fe, Co, and Ni have been studied theoretically by confining the atoms t o various structural forms such as chains,surfaces, and thin films. The size of these systems is controlled by limiting t h e number of atoms. A new first-princip... | Magnetic moment; Dimensionality; Size effects; Fe; Co; Ni | 1990 |
31 |
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Normann, Richard A.; Chandler, John P. | Effects of calcium ions on L-type horizontal cells in the isolated turtle retina | A technique by which the retina can be isolated from the turtle eye is described. Scanning electron microscopy revealed morphological variability between preparations and also between regions of the same one. Large areas were often totally free of any pigment epithelial cells, yet contained a high p... | Retina; Calcium; Horizontal Cell; Turtle | 1990 |
32 |
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Normann, Richard A. | Effects of GABA and related drugs on horizontal cells in the isolated turtle retina | The role of GABA in the outer plexiform layer of the turtle retina has been examined by intracellular recordings from L- and C-type horizontal cells in the isolated retina preparation. GABA (1-5 mM) slightly depolarized the L-type horizontal cells, reduced the amplitude of their photoresponses, and ... | Retina; Horizontal Cells; Synapse; Negative Feedback; GABA; Turtle | 1990 |
33 |
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Warner, Homer R. | The Effects of ILIAD on Medical Student Problem Solving | Biomedical Informatics | | 1990 |
34 |
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Clayton, Paul D. | Emerging Standards for Medical Logic | Biomedical Informatics | | 1990 |
35 |
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Christensen, Douglas A.; Vincent, G. Michael | Fiberoptic laser angioplasty probe with optical steerability | We have designed and bench tested an optically steerable fiberoptic probe for use in laser angioplasty. The unique feature of this design is the use of a gradient-index (GRIN) lens attached to the distal end of a seven-fiber bundle. By selecting which fiber of the bundle is illuminated by the source... | Fiberoptic probe; GRIN lens; Steerability | 1990 |
36 |
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Mathews, V. John | Fixed-point error analysis of stochastic gradient adaptive lattice filters | Abstract-This paper presents a theoretical analysis of the stochastic gradient adaptive lattice filter used as a linear, one-step predictor, when the effects of finite precision arithmetic are taken into account. Only the fixed-point implementation is considered here. Both the unnormalized and norma... | | 1990 |
37 |
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Miller, Jan D.; Lin, Chen-Luh | Flotation recovery of high-purity gibbsite concentrates from a Brazilian bauxite ore | Recently research efforts have been made to obtain a high-purity gibbsite concentrate, suitable for first-class alumina refractories, from a Brazilian bauxite ore containing gibbsite (50%), quartz (35%),and kaolinite (15%). Detailed polished-section microprobe analysis was used to describe the ... | Gibbsite; Alumina | 1990 |
38 |
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Downes, Stephen M. | Herbert Simon's computational models of scientific discovery | Herbert Simon's work on scientific discovery deserves serious attention by philosophers of science for several reasons. First, Simon was an early advocate of rational scientific discovery, contra Popper and logical empiricist philosophers of science (Simon 1966). This proposal spurred on investigati... | Android epistemology; Psychological processes; Cognitive individualism | 1990 |
39 |
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Warner, Homer R. | History of Medical Informatics at Utah | Biomedical Informatics | | 1990 |
40 |
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Akella, Venkatesh | hopCP: language definition, semantics and examples | We describe a formalism for high level modeling of hardware based on flow graphs and nonatomic actions called hopCP. A module is the description of a hardware system in hopCP, which contains a flow graph to model the behavioral aspects and ports which represent the communication links. Operations ar... | hopCP | 1990 |
41 |
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Couldwell, William T. | Immunology and immunotherapy of intrinsic glial tumors | Immunological aspects of glial neoplasms have been actively investigated for the past several years with particular focus on academic, diagnostic, and therapeutic objectives. As more knowledge is acquired about the cellular events relating to tumor behavior the more it appears that the immune system... | Immunology; Glial tumors | 1990 |
42 |
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Christensen, Douglas A.; Andrade, Joseph D. | Improved sensitivity in ellipsometry of thin biochemical films by employing sublayers | Ellipsometry is widely used for investigating the optical properties of thin films on planar substrates, including films of adsorbed proteins or polymers. The average thickness and effective refractive index of the adsorbed layer are calculated by measuring the A and ¥ ellipsometry parameters. Unfo... | Biochemical films; SiO2 sublayer | 1990 |
43 |
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Berg, Cynthia A. | Individual differences in script reports: implications for language assessment | When individuals are asked to describe routine events, their descriptions often exhibit characteristics of script reports (Schank & Abelson, 1977). A script has been defined as a set of expectations individuals have about routine events that is organized in a temporal-causal sequence of acts or sing... | Script reports; Language assessment | 1990 |
44 |
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Couldwell, William T. | Inhibition of growth of established human glioma cell lines by modulators of the protein kinase-C system | The protein kinase-C (PKC) second messenger system contributes to regulation of cell growth and differentiation. This study was undertaken to examine the effects of modulators of the PKC enzyme system on the state of differentiation and proliferation rates of human gliomas in vitro. The administrat... | Protein kinase C; Phorbol ester; Cell proliferation; Tumor cell growth; Astrocyte; Glioma; Immunohistochemistry | 1990 |
45 |
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Couldwell, William T. | Initial experience related to the use of the Cosman-Roberts-Wells stereotactic instrument | Initial experience with a new arc-radius design of stereotactic frame that interfaced with the existing components of the Brown-Roberts-Wells instrument is reported. Over a 6-month period, 32 procedures were performed on 23 males and nine female patients (mean age 32 years); these included 27 ster... | Image-directed stereotaxis; Stereotactic instrument; Cosman-Roberts-Wells stereotaxy | 1990 |
46 |
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Bruderlin, Beat | Interaction with constraints in 3D modeling | Interactive geometric modeling is an important part of the industrial product design process. This paper describes how constraints can be used to facilitate the interactive definition of geometric objects and assemblies. We have implemented a geometric modeling system that combines the definition o... | Interactive geometric modeling; Industrial product design; Geometric constraints | 1990 |
47 |
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Armentrout, Peter B. | Kinetic energy dependence of dissociative charge-transfer reactions of He+, Ne+, Ar+, Kr+, and Xe+ with silane | Guided ion-beam techniques are used to measure the cross sections as a function of kinetic energy for reaction of SiH4 with He +, Ne +, Ar +, Kr +, and Xe +. State-specific data for the 2P3/2 ground spin-orbit states of Kr+ and Xe+ are also obtained. | Silane; Charge-transfer reactions; Ion-molecule reactions; Ion energy; Rare gas ions; Plasma systems | 1990 |
48 |
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Warner, Homer R. | The Knowledge Capabilities of the Vocabulary Component of a Medical Expert System | Biomedical Informatics | | 1990 |
49 |
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Williams, Clayton C. | Lateral dopant profiling in MOS structures on a 100 nm scale using scanning capacitance microscopy | Scanning capacitance microscopy and atomic force microscopy have been used to image the extent of lateral dopant diffusion in MOS structures. The data are capacitance vs. voltage measurements made on a submicron scale. The technique is non-destructive when imaging uncleaved samples. New experim... | Scanning capacitance microscopy; Dopant profiling | 1990 |
50 |
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Mathews, V. John | Lattice and QR decomposition-based algorithms for recursive least squares adaptive nonlinear filters | This paper presents a lattice structure for adaptive Volterra systems. The stucture is applicable to arbitrary planes of support of the Volterra kernels. A fast least squares lattice and a fast QR-lattice adaptive nonlinear filtering algorithms based on the lattice structure are also presented. The... | | 1990 |