UScholar Works
 
Filters: Date: "1990" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
51 Ogburn, Joyce L.Library profile: Penn StateInstitution profile: Penn State is a land grant institution often described as the one university geographically dispersed. Penn State supports twenty-two campuses scattered across the commonwealth. Contrary to what one might infer from the name Penn State, the University is considered "state rel...Pattee Library; Penn State University; Profiles1990
52 Liu, FengLiu et al. replyIn our paper we were alluding to a structural phase transition rather than an order-disorder one. We agree with Blaschko2 that more work needs to be done regarding the statistical mechanics of the hydrogen ordering. This was already acknowledged in our paper when we stated that the model of nonint...Structural phase transition; Hydrogen ordering; Ising lattice-gas models; Proton glass1990
53 Johnson, Bob L.Logic of school restructuring: a conceptual analysisPerusal of the educational literature since 1983 reveals the flood of attention given to reform in this decade. Fueled by reports much like A Nation at Risk and the efforts of personalities such as former Secretary of Education William Bennett, the rhetoric of reform abounds. In state houses across ...Education reform; Educational goals1990
54 Fogel, Alan DaleMaternal speech to three-month-old infants in the United States and JapanAn American-Japanese comparison of maternal speech to 3-month-old infants is presented. Mother-infant dyads were videotaped in the laboratory, and the maternal speech was analysed by function and syntactic form. US mothers were more information-oriented than were Japanese mothers; they also used mor...Maternal speech; Information-oriented; Affect-oriented; Prelinguistic infants; Baby talk1990
55 Jarrard, Richard D.Milankovitch paleoceanographic cycles in geophysical logs from ODP Leg 105, Labrador Sea and Baffin BayOcean Drilling Program (ODP) Sites 645 and 646, in Baffin Bay and the Labrador Sea, respectively, were logged following drilling during Leg 105. Geophysical logs in ODP drill sites yield long, continuous records of sedimentary sequences and thus provide the opportunity for examining evidence of peri...1990
56 Zhang, KangMolecular and developmental characterization of the heat shock cognate 4 gene of Drosophila melanogasterThe Drosophila heat shock cognate gene 4 (hsc4), a member of the hsp70 gene family, encodes an abundant protein, hsc70, that is more similar to the constitutively expressed human protein than the Drosophila heat-inducible hsp70. Developmental expression revealed that hsc4 transcripts are enriched in...Embryo, Nonmammalian; Molecular Sequence Data1990
57 Miller, Jan D.Molybdenite flotation from copper/molybdenum concentrates by ozone conditioningTypically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% M...Molybdenum; Copper; Flotation; Ozone conditioning1990
58 Blair, David F.MotA protein of E. coli is a proton-conducting component of the flagellar motorA number of mutants of motA, a gene necessary for flagellar rotation in E. coli, were isolated and characterized. Many mutations were dominant, owing to competition between functional and nonfunctional MotA for a limited number of sites on the flagellar motor. A new class of mutant was discovered...MotA protein; MotA gene; Flagellar motor; Proton-conducting1990
59 Baehr, WolfgangMouse opsin. Gene structure and molecular basis of multiple transcriptsThe single copy mouse opsin gene produces five major transcripts, varying in size from 1.7 to 5.1 kilobases. The mRNAs are present at levels that vary over 2 orders of magnitude and can be detected as early as postnatal day 1. Each of the transcripts is polyadenylated and can be identified in polyso...Polyribosomes; Restriction Mapping; Sequence Homology, Nucleic Acid1990
60 Ailion, David CharlesNMR determination of the Edwards-Anderson order parameter in the deuterated pseudo-spin glass Rb1-x(ND4)xD2PO4: anisotropy and concentration dependence of the ND4 deuteron second momentWe measured the rotationally averaged N D 4 + deuteron second moment in deuterated mixed single crystals Rb1_x(ND4 ) xD2P04 with x = 0.22, 0.44, 0.78, and pure ND4D2P04 . We found that the linewidths of the mixed systems show a strong dependence on the crystal's orientation with respect to the exter...NMR; Crystals; Deuteron second moment; Anisotropy; Linewidth1990
61 Michell, NickOn the potential of asynchronous pipelined processorsAn asynchronous version of the pipelined R3000 and DLX processors, the A3000, is being designed. Simulation was employed t o investigate the potential speed-up obtainable due t o the asynchronous operation. Preliminary results show up to a 64% improvement in performance.Pipelined processors; Pipelined R3000; DLX processors; A30001990
62 Gardner, Reed M.Patient Monitoring SystemsBiomedical Informatics1990
63 Vardeny, Zeev ValentinePicosecond photomodulation study of nanocrystalline hydrogenated siliconWe have extended our photomodulation studies of nc-Si:H to the picosecond time domain. We measured the decays of photoinduced reflectivity with lOOfs temporal resolution as a function of. light intensity. Comparison with the data obtained on a-Si:H and c-Si indicates that ultrafast trapping and reco...Picosecond photomodulation; Nanocrystalline silicon1990
64 Kestle, John R. W.Propionibacterium encephalitis [Letter to the editor]To THE EDITOR: We read with interest the article by Camarata, et al., reporting two cases of dorsal midbrain encephalitis (Camarata PJ, McGeachie RE, Haines S J: Dorsal midbrain encephalitis caused by Propionibacterium aches. Report of two cases. J Neurosurg 72." 654-659, April, 1990). There are...1990
65 Firmage, Edwin B.Religion & the law: the Mormon experience in the nineteenth centuryThe Mormon cases present a fascinating study of diversity and conformity in the nineteenth century United States. From their beginning the Mormons were a gathered people. Almost immediately, from the time of the origin in New York, the Mormons challenged national and state legal systems to protect...Law; Church of Jesus Christ of Latter Day Saints; Nineteenth century; Polygamy; Theocracy1990
66 Kachi, YukioReview article on A.C. Graham, Reason and SpontaneityThis is a book review of A. C. Graham's Reason and Spontaneity, a book that advances the proposal to ground all values, whether prudential, moral, or aesthetic, in the imperative 'Be aware'. The empirical thesis concerns causal connections between awareness and motivation.Book review; Values; Metaphysics1990
67 White, Nicholas P.Review of M. Schofield and G. Striker, eds., 'The Norms of Nature'This is a review of of The Norms of Nature: Studies in Hellenistic Ethics, edited by Malcom Schofield and Gisela Striker. The book contains nine studies on Epicurean, Stoic, and Skeptic views on value and ethics.Book review; Values; Epicureans (Greek Philosophy;); Stoics; Philosophy;, Ancient1990
68 Bruderlin, BeatRobust regularized set operations on polyhedraThis paper describes a provably correct and robust implementation of regularized set operations on polyhedral objects. Although the algorithm described here does not assume manifold polyhedra and handles all possible degenerate cases, it turns out to be quite simple. The geometric operations and rel...Robust regularized set operations1990
69 Jarrard, Richard D.Sedimentary response to paleoclimate from downhole logs at Site 693, Antarctic Continental MarginThe first well logs collected below the Antarctic circle were obtained during Leg 113 at Site 693 on the Dronning Maud Land Margin (Antarctica) in the Weddell Sea. Gamma-ray, resistivity, and sonic logs were collected between 108.0 and 439.0 mbsf. The downhole logs show good agreement with the data...1990
70 Elens, Robert N.Sequencing computational events in heterogeneous distributed systemsDistributed systems are growing in number, size, and complexity. Some technological advances have been made to program these systems, most notably the remote procedure call. However, the nature of heterogeneous distributed systems allows for much more complex interactions and new programming techno...Sequencing; Computational events; Heterogeneous distributed systems1990
71 Battin, Margaret P.Seven caveats concerning the discussion of euthanasia in HollandAs the discussion of voluntary active euthanasia heats up in the United States (indeed, I believe it will be the major social issue of the next decade, replacing abortion in that role), increasing attention is being given to its practice in the Netherlands. Proponents of the view that the United Sta...1990
72 Firmage, Edwin B.Shanties, symbolic speech, and the public forum: ramshackle protection for free expressionShanties, symbolizing student opposition to South African apartheid and the demand that United States universities divest from corporations doing business in South Africa, were the sit-ins of the 1980s. Silent but graphic, shanties challenged the established order and attracted media attention. Som...Civil demonstration; Civil protest; First Amendment; Civil liberties1990
73 Horch, Kenneth W.; Normann, Richard A.Simulation of a phosphene field based visual prosthesisA visual prosthesis for the blind based upon electrical stimulation of the visual cortex requires the development of an array of electrodes. To establish design specifications for such an electrode array, we have conducted psychophysical experiments with normally sighted subjects wearing a portable...Visual prosthesis; Phosphene simulator1990
74 Fogel, Alan DaleSocial dynamics of early human developmentI present the outlines of theory of social dynamics that combines a dynamic systems perspective and a Gibsonian ecological perspective to an understanding of the development of action (Fogel, in press). Different physical and social environments afford different opportunities for action. A rattle af...Social dynamics; Early human development1990
75 Warner, Homer R.Some Changes in Medical Informatics (Editorial)Biomedical Informatics1990
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