UScholar Works
 
Filters: Date: "2000" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
51 Jaskowski, Troy D.Evaluation of a PCR probe capture assay for the detection of Toxoplasma gondii: incorporation of uracil N-glycosylase for contamination controlToxoplasma gondii is a cyst-forming parasite of clinical relevance in humans primarily because of the neurologic abnormalities it can cause. In some clinical circumstances, it is desirable to detect the pathogen directly. We modified a commercially available Toxoplasma polymerase chain reaction...PCR probe capture assay; Uracil N-glycosylase; UNG2000
52 Miller, Jan D.Evaluation of plantwide control strategies for coal preparation plantsThe quality of cleaned products from coal preparation plants is often variable due to natural fluctuations in the washability characteristics of the plant feed. To combat this problem, many modern plants have installed on-line analyzers that provide feedback for the real-time control of product q...Circuit; Yield; Optimization2000
53 Kieda, David B.Evidence for changing of cosmic ray composition between 10(17) and 10(18) eV from multicomponent measurementsThe average mass composition of cosmic rays with primary energies between 1017 and 1018 eV has been studied using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the MIA muon array. Measurements have been made of the change in the depth of shower maximum and the ...Cosmic rays; Particle energy; Muon array2000
54 Tiwari, AshutoshExperiments along coexistence near tricriticality in 3He-4He mixturesThe tricritical point in the phase diagram of 3He-4He mixtures offers unique opportunities to test our understanding of critical phenomena. Because D = 3 is the marginal spatial dimension for tricriticality, the associated critical exponents are exact integer fractions. In addition, one expects to f...Tricriticality; Tricritical point; 3He-4He mixtures2000
55 Miller, Joel StevenFerrimagnetic ordering of a methylthio-substituted planar porphyrin based electron transfer salt, octakis(2,3,7,8,12,13,17,18-methylthio)porphyrinatomanganese(III) tetracyanoethanideThe direct redox reaction between tetracyanoethylene (TCNE) and a planar porphyrinatomanganese(II), octakis(2,3,7,8,12,13,17,18-methylthio)porphyrinatomanganese(II), MnIIOMTP, produced a polymeric electron transfer salt (ETS), that has been structurally and magnetically characterized. The ETS belon...Magnetic; Temperature; Coupling2000
56 Stevens, KennethFsimac: a fault simulator for asynchronous sequential circuitsAt very high frequencies, the major potential of asynchronous circuits is absence of clock skew and, through that, better exploitation of relative timing relations. This paper presents Fsimac, a gate-level fault simulator for stuck-at and gate-delay faults in asynchronous sequential circuits. Fsimac...2000
57 Ehleringer, James R.Fuentes de aqua utilizadas por las plantas desérticas y su importancia en planes de manejo y restauración ecológicaEl agua es el factor más importante que afecta a la productividad primaria y la estructura de la vegetación en ecosistemas áridos. Dado que las especies de plantas pueden diferir en sus capacidades de utilizar distintas fuentes de agua, el conocimiento de estos aspectos es fundamental para los ...Fuentes de agua; Isótopos estables; 8-H; 5 l sO; Zonas áridas; Plantas desérticas; Relaciones hídricas; Restauración ecológica; Desierto de Atacama; Atacama Desert; Stable isotopes; Water sources; Arid regions; Ecological restoration; Water relations; Water supplies2000
58 Adler, Frederick R.Genetic and phylogenetic consequences of island biogeographyIsland biogeography theory predicts that the number of species on an island should increase with island size and decrease with island distance to the mainland. These predictions are generally well supported in comparative and experimental studies. These ecological, equilibrium predictions arise as a...Extinction; Genetic divergence; Island isolation; Migration; Speciation2000
59 Diener, Marissa L.Gift from the gods: a Balinese guide to early child rearingThe influence of Western schools and other imports notwithstanding, many child-rearing practices recorded earlier in the century [in Indonesia] are still observable, especially those concerning infants and young children. For the "manual" that follows, I propose as the fictive author a male healer, ...Children; Bali; Infants; Child rearing manuals2000
60 Smits, BrianGlobal illumination test scenesThe global illumination community has discussed having a database of scenes that could be used to compare and validate different global illumination algorithms. We present a set of test scenes for global illumination algorithms and propose that they be the beginning of such a database. These scenes ...Global illumination2000
61 Boehme, ChristophH loss mechanism during anneal of silicon nitride: chemical dissociationRemote plasma enhanced chemical vapor deposited silicon nitride (SixNyHz), produced at high ammonia to silane flow rates (ammonia rich) shows a reduction of hydrogen during rapid thermal anneal at temperatures that exceed the deposition temperature. This H release could be either due to a ‘‘slow...Anneal2000
62 Dennis, Sharon E.; Uijtdehaage, Sebastian; Candler, C.Health Education Assets Library (HEAL)The Health Education Assets Library (HEAL) is a digital library that provides freely accessible digital teaching resources of the highest quality that meet the needs of today's health sciences educators and learners.HEAL; Health Education Assets Library2000
63 Stringfellow, Gerald B.; Shurtleff, James KevinHeterostructures in GaInP grown using a change in Te dopingIn organometallic vapor phase epitaxy, changes in growth conditions can be used to modulate the extent of CuPt ordering and, hence, the band gap energy of GaInP. One method is to add Te during growth. An increase in the band gap energy of 0.1 eV due to a decrease in ordering has been obtained by ...Heterostructures; Alloys2000
64 Brunvand, Erik L. ; Gopalakrishnan, GaneshHigh-level asynchronous system design using the ACK frameworkDesigning asynchronous circuits is becoming easier as a number of design styles are making the transition from research projects to real, usable tools. However, designing asynchronous "systems" is still a difficult problem. We define asynchronous systems to be medium to large digital systems whose...2000
65 Broughton, JohnHomestead cave IchthyofaunaBiological evidence on the climatic and hydrographic history of the intermountain region would be much richer, if we had more than the present dribble of paleontological data on the fishes (Hubbs and Miller, 1948, p. 25). In this passage from their landmark synthesis of historical fish biogeograph...Homestead Cave; Ichthyofauna; Lake Bonneville2000
66 Carrier, David R.Human flight and exercise in microgravityEarly experimenters in human flight learned, sometimes with fatal consequences, that the human body lacks the muscular power to fly (1). Indeed, the power demands are so great that only relatively small animals (less than 12 kg) are able to fly actively due to the interplay of morphologic scaling (m...Human flight; Microgravity2000
67 Hawkes, KristenHunting and the evolution of egalitarian societies: lessons from the HadzaPolitical hierarchies are common in human societies but absent among many mobile hunter-gatherers. So egalitarian social organizations have been attributed to limits that foraging imposes on wealth accumulation. But male-dominance hierarchies characterize all the great apes, our nearest relatives. ...2000
68 Mathews, V. JohnImage enhancement via adaptive unsharp maskingAbstract-This paper presents a new method for unsharp masking for contrast enhancement of images. Our approach employs an adaptive filter that controls the contribution of the sharpening path in such a way that contrast enhancement occurs in high detail areas and little or no image sharpening occur...2000
69 Tasdizen, TolgaImproving the stability of algebraic curves for applicationsAn algebraic curve is defined as the zero set of a polynomial in two variables. Algebraic curves are practical for modeling shapes much more complicated than conics or superquadrics. The main drawback in representing shapes by algebraic curves has been the lack of repeatability in fitting algebraic...2000
70 Industrial revolutions: from canal systems to computer networksToday's so-called "Information Revolution" is often compared to past industrial revolutions, especially a British Industrial Revolution which took place between 1750 and 1830 and a Second Industrial Revolution which is believed to have occurred in the United States between 1880 and 1940. The compari...Information technology; Information Age2000
71 Harrison, Reid R.Integrating sensorimotor systems in a robot model of cricket behaviorThe mechanisms by which animals manage sensorimotor integration and coordination of different behaviors can be investigated in robot models. In previous work the first author has built a robot that localizes sound based on close modeling of the auditory and neural system in the cricket. It is known ...2000
72 Farmer, Colleen G.; Carrier, David R.Integration of ventilation and locomotion in archosaursMovements of the pelvis have recently been found to contribute to ventilation in both crocodilians and birds. Alligators have a kinetic pelvis in which the ischiopubic and ischiotruncus muscles rotate the pubic bones ventrally to increase abdominal volume and thereby facilitate inspiration. In birds...Archosaurs; Theropods; Integration; Ventilation; Pelvic aspiration; Cuirassal breathing2000
73 Berg, Cynthia A.Intellectual development in adulthoodAs for writing, I still write - at age 72. My experience is that I have to strive harder, tire sooner and come apart at the seams more completely than was the case when I was younger. The aging mind has a bagful of nasty tricks, one of which is to tuck names and words away in crannies where they arc...Intellectual development2000
74 Miller, Jan D.Interaction forces between toner surfacesThe interaction of toner particles in aqueous solution is of interest with regard to both fundamental and practical aspects of de-inking processes. It has been established for the toner studied that the toner polymeric resin, that is, the block copolymer styrene-methyl methacrylate, more specifical...Interaction forces; toner surfaces; PMMA2000
75 Myers, Chris J.Interfacing synchronous and asynchronous modules within a high-speed pipelineAbstract-This paper describes a new technique for integrating asynchronous modules within a high-speed synchronous pipeline. Our design eliminates potential metastability problems by using a clock generated by a stoppable ring oscillator, which is capable of driving the large clock load found in pre...2000
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