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Filters: Date: "1984" Collection: "ir_uspace" Type: "Text"
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CreatorTitleDescriptionSubjectDate
26 Gardner, Reed M.Frequency of Technical Problems Encountered in the Measurement of Pulmonary Artery Wedge PressureBiomedical Informatics1984
27 Davidson, Diane W.Granivory in a desert ecosystem: experimental evidence for indirect facilitation of ants by rodentsTwo major groups of desert granivores, ants and rodents, coexist as permanent residents of local desert habitats in southwestern North America. At our Sonoran Desert study site, both of the major taxa exhibited short-term increase in density when the other taxon was experimentally removed. Over the...Ants; Arizona; Desert annuals; Facilitation; Granivory; Indirect mutualism; Rodents; Seed predation; Sonoran Desert1984
28 Coley, Phyllis D.Guía de los arboles comunes del Parque Nacional Soberanía, PanamáEsta es una guía con dibujos para las cincuenta especies de árboles más comunes del bosque tropical en los alrededores del Parque Soberanía, Panamá. También se incluyen siete especies de hierbas y cuatro herbáceas grandes que sobresalen en el sotobosque (bosque bajo). Aunque en el área del p...Arboles; Arbustos1984
29 Warner, Homer R.The HELP SystemBiomedical Informatics1984
30 Williams, Clayton C.High resolution photothermal laser probeAt frequencies near 1 GHz, the acoustic wavelength in argon gas becomes half that of visible light, making possible collinear Bragg scattering of laser light by the sound. This acousto-optic interaction has been used to detect photothermally generated acoustic power at the surface of solids. This ne...Photothermal laser probe; Silicon wafer1984
31 Miller, Jan D.Hydrophobic character of semisoluble salt minerals with oleate as collectorThe effects of temperature, oxygen partial pressure, and solution chemistry can have a significant effect on the hydrophobic character of semisoluble salt minerals with adsorbed oleate. Measurements of bubble-attachment time and contact angle reveal the sensitivity of these hydrophobic surfaces to c...Flotation; Solution; Oleate1984
32 Henderson, Thomas C.Implementing multi-sensor systems in a functional languageWe discuss a methodology for configuring systems of sensors using a functional language. To date no such general methodology exists, and existing multi-sensor systems have been hand-crafted around a particular application. Our main point is that the use of abstraction and of functional language fe...Multi-sensor systems; Multisensor systems1984
33 Frederick, Jeanne M.Inhibitors of metalloendoprotease activity prevent K+-stimulated neurotransmitter release from the retina of Xenopus laevis.Metalloendoprotease activity was identified in retinal homogenates using a synthetic fluorogenic metalloendoprotease substrate and specific metalloendoprotease inhibitors. The requirement of metalloendoprotease activity in neurotransmitter release was examined during the depolarization-induced relea...Neuromuscular Junction; Neurotransmitter Agents; Membrane Fusion1984
34 Gardner, Reed M.Integrated Computer Network for Acute Patient CareBiomedical Informatics1984
35 Henderson, Thomas C.Logical sensor systemsMulti-sensor systems require a coherent and efficient treatment of the information provided by the various sensors. We propose a framework the Logical Sensor Specification System, in which the sensors can be abstractly defined in terms of computational processes operating on the output from other se...Logical sensor systems; Multi-sensor systems; Multisensor systems; Logical Sensor Specification System1984
36 Wu, Yong-ShiMassless fermions and Kaluza-Klein theory with torsionA pure Kaluza-Klein theory contains no massless fermion in four-dimensional theory. We investigate the effect of introducing torsion on the internal manifold and find that there are massless fermions. The hope is that given an isometry group the representation to which these fermions belong is fixe...Massless fermions; Four-dimensional theory; Torsion1984
37 Gardner, Reed M.Measuring the Value of Information SystemsBiomedical Informatics1984
38 Beckerle, Mary C.Microinjected fluorescent polystyrene beads exhibit saltatory motion in tissue culture cellsMicroinjected 0.26-um fluorescent, carboxylated microspheres were found to display classical saltatory motion in tissue culture cells . The movement of a given particle was characterized by a discontinuous velocity distribution and was unaffected by the activity of adjacent particles.Organelles; Microscopy; Proteins1984
39 Hansen, Charles D.; Henderson, Thomas C.MKS: a multisensor kernel systemThe multisensor kernel system (MKS) is presented as a means for multisensor integration and data acquisition. This system has been developed in the context of a robot work station equipped with various types of sensors utilizing three-dimensional laser range finder data and two-dimensional camera da...Multisensor kernel system; Spatial proximity graphs1984
40 Ailion, David CharlesMolecular reorientations in the ordered phases of KCN and NaCN studied by NMRWe have measured 13C and 23Na NMR spin-lattice relaxation times as a function of temperature in KCN and NaCN in order to study the head-to-tail reorientations of the CN- molecules in the two low-temperature ordered phases. We have combined our data with those of dielectric-response and ionic-thermal...Spin; Interactions; Fluctuations1984
41 Horch, Kenneth W.; Tuckett, Robert P.; Burgess, Paul RichardNeural signal for the intensity of a tactile stimulusThe effect of indenting the skin at different rates on the perceived intensity of the stimulus was studied by indenting the skin of the fingertip with two triangular waveforms, given as a pair. The subjects were asked to judge which member of the pair was more intense. Perceived intensity was foun...Skin; Indentation; Nerve impulses1984
42 Ehleringer, James R.Orientation and slope preference in barrel cactus (Ferocactus acanthodes) at its northern distribution limitMicrosite distribution and diurnal tissue temperature fluctuations were measured in Ferocactus acanthodes (barrel cactus) at its northern distribution limit in the Beaver Dam Mountains of southwestern Utah. At this location, barrel cacti were limited to south-facing slopes. Orientation (azimuth an...Ferocactus acanthodes; Barrel cactus; Slope preference1984
43 Bastiani, MichaelPathfinding by neuronal growth cones in grasshopper embryo: III. Selective affinity of the G growth cone for the P cells within the A/P fascicleThe growth cone of the G neuron selectively fasciculates upon specific axon bundles in a stereotypic sequence as it navigates through the developing central nervous system of the grasshopper embryo. It turns and extends anteriorly in the contralateral neuropil of the second thoracic ganglion at a s...Axon; Filopodia; Neuropil1984
44 Bastiani, MichaelPathfinding by neuronal growth cones in grasshopper embryos: IV. The effects of ablating the A and P axons upon the behavior of the G growth coneIn the companion paper (Bastiani, M. J., J. A. Raper, and C. S. Goodman (1984) J. Neurosci. 4: 2311-2328), we show that as the G growth cone reaches its choice point and turns anteriorly on the A/P fascicle, its filopodia demonstrate selective affinity for the A/P fascicle as compared to the other a...Labeled pathway; Anterior extension; Fascicle1984
45 Mattis, Daniel C.Phonon model of vacancy-interstitial pair formation in solidsBonds between neighboring atoms in a solid are imperfect harmonic oscillators. Through consideration of the nonlinearities, it is shown that vacancy-interstitial defect pairs can be described in terms of phonon dynamical variables. The effective spring constants are determined by self-consistency...Harmonic; Potential; Homogeneous1984
46 Vardeny, Zeev ValentinePhotoconductivity and photoinduced absorption in a-Si:F and a-Si:HThe photoconductivity (PC) and photoinduced absorption (PA) of RF glow discharge a-Si:F and a-Si:H samples is reported. The value of the room temperature PC of a-Si:F is lower by some four orders of magnitude relative to that of a-Si:H, but the PA of a-Si:F is found to be significantly higher than t...Photoinduced absorption; a-Si:F; a-Si:H; RF glow discharge; Spin densities1984
47 Vardeny, Zeev ValentinePhotoinduced absorption spectra in amorphous Si:H and Ge:H and microcrystalline Si:HThe steady state subgap photoinduced absorpotion bands in a-Ge:H and a-Si:H are interpreted in terms of two kinds of optical transitions of photoexcited carriers from traps in the gap into the bands of which one produces absorption and the other produces bleaching. The photoinduced absorption in mic...Photoinduced absorption; Si:H; Ge:H; Amorphous silicon; Amorphous germanium; Microcrystalline silicon1984
48 Bradshaw, Karen E.Physician Decision-Making: Evaluaton of Data Used in a Computerized ICUBiomedical Informatics1984
49 Vardeny, Zeev ValentinePicosecond optical generation and detection of phonon waves in a-As2Te3Using the pump and probe technique we have observed oscillations of photoinduced transmission in thin films of a-As2Te3. The oscillations have periods of 70-240 ps, depending on sample thickness. We ascribe these to phonon propagation in the films. Thermal expansion and carrier deformation potenti...Picosecond optical generation; a-As2Te3; Pump and probe technique1984
50 Olivera, Baldomero M.Poly(ADP-ribosylation) of DNA topoisomerase I from calf thymusWe demonstrate that the activity of the major DNA topoisomerase I from calf thymus is severely inhibited after modification by purified poly(ADP-ribose) synthetase. Polymeric chains of poly(ADP-ribose) are covalently attached to DNA topoisomerase I. These observations with highly purified enzymes ...ADP-ribosylation; Poly(ADP-ribose) synthetase1984
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