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Creator | Title | Description | Subject | Date |
26 |
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Smith, Grant D. | Conformational properties of poly(vinylidene fluoride). A quantum chemistry study of model compounds | The molecular geometries and conformational energies of model molecules of poly(vinylidene fluoride) (PVDF) have been determined from high-level quantum chemistry calculations and have been used in parametrization of a six-state rotational isomeric state (RIS) model for PVDF. The model molecules inv... | Poly(vinylidene fluoride); PVDF; Conformational properties | 1999 |
27 |
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Beckerle, Mary C.; Clark, Kathleen A. | Conserved LIM protein that affects muscular adherens junction integrity and mechanosensory function in Caenorhabditis elegans | We describe here the molecular and functional characterization of the Caenorhabditis elegans unc-97 gene, whose gene product constitutes a novel component of muscular adherens junctions. UNC-97 and homologues from several other species define the PINCH family, a family of LIM proteins whose modula... | LIM domains; Caenorhabditis elegans; UNC-97; Adherens junction; Touch neuron; Muscle development | 1999 |
28 |
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Goller, Franz | Contributions of expiratory muscles to song production in zebra finches | Birdsong production requires coordinated activity of syringeal and respiratory muscles, Phonation occurs during the expiratory phase of the respiratory cycle, and expiratory muscles generate the pressure head for sound production. | Phonation; Syringeal muscles; Air sac pressure | 1999 |
29 |
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Riloff, Ellen M. | Corpus-based identification of non-anaphoric noun phrases | Coreference resolution involves finding antecedents for anaphoric discourse entities, such as definite noun phrases. But many definite noun phrases are not anaphoric because their meaning can be understood from general world knowledge (e.g., "the White House" or "the news media"). We have develope... | Corpus-based identification; Non-anaphoric noun phrases; Coreference resolution; MUC-4; Discourse entity; DE | 1999 |
30 |
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Miller, Joel Steven | Crystal structure and magnetic properties of [Fe{N(CN)2}2(MeOH)2] a 2-D layered network consisting of hydrogen-bonded 1-D chains | A novel 2-D layered network structure [Fe{N(CN)2}2(MeOH)2] was synthesized and characterized by X-ray crystallography, vibrational, and magnetic susceptibility. The neutral 2-D stair-like framework consists of hydrogen-bonded infinite 1-D {Fe[N(CN)2]2} ribbons that pack in a staggered arrangement wh... | Solids; Dicyanamide; Ordering | 1999 |
31 |
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Chuaqui, Miguel Basim | De metal y madera: for flute, cello, percussion, and electronics | | | 1999 |
32 |
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Sanchez, Thomas W. | Debunking the exurban myth: a comparison of suburban households | As American cities spill over their traditional boundaries into 'exurbia', the debate about whether this new growth is substantively different from what preceded is an important one. We disagree with the idea that the counterurbanization the United States is experiencing represents a dramatic bre... | Demographics; Location; Suburban | 1999 |
33 |
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Adler, Frederick R. | Departure time versus departure rate: how to forage optimally when you are stupid | Foragers unable to leave a patch at the optimal moment must act as constrained foragers. Extending the results of Houston and McNamara (1985), we compare a blundering forager that leaves patches at a constant rate with an unconstrained optimal forager that leaves patches at the optimal time. | Blundering Foragers; Foraging; Marginal Value Theorem | 1999 |
34 |
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Barusch, Amanda | Depressive symptoms in the frail elderly: physical and psycho-social correlates | The elderly who suffer from chronic illness are at unusually high risk of depression and depressive symptoms. This study was conducted to describe the prevalence of depressive symptoms in a sample of chronically-ill elders and to examine the relationship between physical illness and depression, bot... | Physical correlates; Psycho-social correlates | 1999 |
35 |
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Jacobson, Hans | Design and validation of a simultaneous multi-threaded DLX processor | Modern day computer systems rely on two forms of parallelism to achieve high performance, parallelism between individual instructions of a program (ILP) and parallelism between individual threads (TLP). Superscalar processors exploit ILP by issuing several instructions per clock, and multiprocessors... | DLX processor; Validation | 1999 |
36 |
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Carter, John B. | Design of a parallel vector access unit for SDRAM memory systems | Parallel Vector Access is a technique that exploits the regularity of vector or stream accesses to perform them efficiently in parallel on a multi-bank memory system. The performance of applications that have vector accesses may be improved using a memory controller that performs scatter/gather oper... | Parallel vector access; SDRAM memory; Multi-bank memory system | 1999 |
37 |
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Freier, Rodney; Thompson, William B. | Design-space exploration of most-recent-only communication using myrinet on SGI ccNUMA architectures | SGI's current ccNUMA multiprocessor architectures offer high scalability and performance without sacrificing the ease of use of simpler SMP systems. Although these systems also provide a standard PCI expansion bus, the bridging between PCI and SGI's ccNUMA architecture invalidates the assumptions ty... | Most-recent-only communication; Myrinet; SGI; Communications latencies | 1999 |
38 |
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Lupton, John Mark | Device model for polymer light emitting diodes: effect of temperature and oxidation | We present a temperature-dependent single carrier device model for polymer light-emitting diodes. The model includes both the injection of charge carriers over a barrier and the transport of charges across the device. To test the model, the temperature dependence of an LED based on the conjugated po... | Single carrier; Temperature dependent; Poly(phenylene vinylene); Transport measurements; ITO; Disorder | 1999 |
39 |
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Li, Minqi | Dialogue on the future of China | Three Chinese scholars speak to the question: How do you think the June 4th movement of 1989 will be remembered-----as another May 4th 1919, the threshold of a period of general political awakening and turbulence, or instead as a Chinese version of 1848 or 1968 in Europe: a last spontaneous explosio... | China; Politics; Social conditions | 1999 |
40 |
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Miller, Joel Steven | Dimetallic complexes derived from a novel dinucleating chelating symmetric triazole ligand; crystal strcutrue,magnetic properties and ESR study of Bis[μ-3,5-diacetlyamino-1,2,4-triazolato-O',N1,N2,O"]bis[nitrato)(aqua)-copper(II)] | Reaction of 3,5-diacetylamino-1,2,4-triazole (Hdaat) with copper(II), nickel(II) and cobalt(II) salts yields dinuclear co-ordination compounds, which were spectroscopically characterized. The crystal and molecular structure of one of the compounds, bis[u-3,5-diacetylamino-1,2,4-triazolato-0'_x0001_,... | Susceptibility; Orbitals; Compounds | 1999 |
41 |
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Truong, Thanh | Direct ab initio dynamics studies of the hydrogen abstraction reactions of hydrogen atom with fluoromethanes | A direct ab initio dynamics study on the gas-phase reactions of atomic hydrogen with different fluoromethanes has been carried out. The thermal rate constants were calculated using canonical variational transition state (CVT) theory augmented by multidimensional semiclassical zero and small curvatur... | Hydrogen abstraction reactions; Gas-phase reactions; Fluoromethanes; Thermal rate constants; Moller?Plesset perturbation theory; Hybrid density functional theory | 1999 |
42 |
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Myers, Chris J. | Direct synthesis of timed asynchronous circuits | This paper presents a new method to synthesize timed asynchronous circuits directly from the specification without generating a state graph. The synthesis procedure begins with a deterministic graph specification with timing constraints. A timing analysis extracts the timed concurrency and timed cau... | | 1999 |
43 |
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Myers, Chris J. | Direct synthesis of timed asynchronous circuits | This paper presents a new method to synthesize timed asynchronous circuits directly from the specification without generating a state graph. Our synthesis procedure begins with a deterministic signal transition graph specification to which timing constraints can be added. First, a timing analysis ex... | | 1999 |
44 |
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Ehleringer, James R. | Ecosystem physiology responses to global change | Most ecosystems exposed to double ambient C02 show higher peak season net carbon uptake than those growing at current-ambient C02. For grasslands, above-ground biomass increased by an average of 14%, although individual responses for a given system and year range from negative to +85%. The wide ran... | Global change ; Ecosystem physiology; Carbon budget; Temperature; Water availability; Nitrogen deposition; Ozone | 1999 |
45 |
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Miller, Jan D. | Effect of pH on pulping and flotation of mixed office wastepaper | The effect of pulping reagents on the deinking flotation of laser-printed wastepaper was investigated with regard to the removal efficiency of toner and mineral filler particles at different pH values. These results show that caustic pulping causes the toner to be released from the fibres as larger... | Wastepaper; Deinking; pH values; Pulp production processes | 1999 |
46 |
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Mathews, V. John | Efficient block-adaptive parallel-cascade quadratic filters | Abstract-This brief presents computationally efficient block-adaptive algorithms for quadratic filters employing parallel-cascade realizations of the system model. Parallel-cascade realizations implement higher order Volterra systems using a parallel connection of multiplicative combinations of lowe... | | 1999 |
47 |
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Symko, Orest George | Energy conversion using thermoacoustic devices | Thermoacoustic engines offer the possibility for simple and efficient energy convmiondevices. They can be prime movers where heat produces sound or heat pumps and refrigerators where sound pump heat. An important element in such engines is the secondary thermodynamic medium, the stack which provides... | Thermoacoustic devices; Thermoacoustics | 1999 |
48 |
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Mathews, V. John | Equalization of recursive polynomial systems | Abstract-This letter presents some theorems for the exact and pth-order equalization of nonlinear systems described by recursive polynomial input-output relationships. It is shown that the nonlinear equalizers derived on the basis of this theory have simple and computationally efficient structures. ... | | 1999 |
49 |
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Adler, Frederick R. | Evolution of forager responses to inducible defenses | Most theoretical and empirical investigations of inducible defenses have focused on identifying conditions that favor the evolution of inducibility by the prey species. These analyses outline the essential consequences of frequency-dependent benefits of deploying the defense, degrees of predictabili... | Predation; Cues; Phenotypes | 1999 |
50 |
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Potts, Wayne K. | Evolution of mating preferences and major histocompatibility complex genes | House mice prefer mates genetically dissimilar at the major histocompatibility complex (MHC). The highly polymorphic MHC genes control immunological self/nonself recognition; therefore, this mating preference may function to provide "good genes" for an individual's offspring. However, the evidence ... | Inbreeding; Parasites; Recognition | 1999 |