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Open Access Publications from the University of California

Scholarly Works (115 results)

  • Article
  • Peer Reviewed
Ufahamu: A Journal of African Studies, Volume 8, Issue 1 (1977)
No abstract
    Cover page: The Corporatist Idea in Comparative Politics
    • Article
    • Peer Reviewed
    Fisher Center Working Papers (1987)
      Cover page: Current Wealth and Tenure Choice
      • Article
      LBL Publications (1965)
        Cover page: TEMPERATURE DEPENDENCE OF THE ENERGY PER ELECTRON-HOLE PAIR IN SILICON
        • Article
        American Indian Culture and Research Journal , Volume 24, Issue 3 (2000)
          Cover page: The Shaping of America: A Geographical Perspective on 500 Years of History. Volume 3: Transcontinental America, 1850-1915. By D. W. Meinig.Creative Commons 'BY-NC' version 4.0 license
          • Article
          LBL Publications (1962)
            Cover page: MECHANICAL BEHAVIOR OF SINGLE AND POLYCRYSTALLINE CESIUM BROMIDE
            • Article
            • Peer Reviewed
            LBL Publications (2002)

            This paper presents a case for replacing mercury thermometers with their organic-liquid-filled counterparts. A review of liquid-in glass-thermometers is given. In addition, a brief summary of mercury's health effects and exposure limits is presented. Spill cleanup methods and some lessons learned from our experience are offered as well. Finally, an overview of the mercury thermometer exchange program developed at Lawrence Berkeley National Laboratory is presented.

              Cover page: Controlling mercury spills in laboratories with a thermometer exchange program
              • Article
              • Peer Reviewed
              Proceedings of the Annual Meeting of the Berkeley Linguistics Society, Volume 4 (1978)
                Cover page: Consonant Assimilation in Inupiaq Eskimo
                • Article
                • Peer Reviewed
                Proceedings of the Annual Meeting of the Cognitive Science Society, Volume 16 (1994)
                Reseaichen in AI often say that certain types of reference are baaed on perception. Their models, however, do not reflect perceptual functioning, but instead represent denotation, an intellectuaUy modeled relation, by using exact feature matching in a serial device as the basic mechanism for reference. I point out four problems in this use of denotation: substitution of an intellectual model for a perceptual one; unclarity about the nature of referential identification; relative neglect of the role of contrast in reference; and inexact matches. I then suggest an alternative theoretical account for perceptually based indexical reference, the figure-ground model, and I e:q>lain how this model handles the four problems.
                  Cover page: Explanatory AI, Indexical Reference, and Perception
                  • Thesis
                  • Peer Reviewed
                  UC Riverside Electronic Theses and Dissertations (2010)

                  ABSTRACT OF THE DISSERTATION

                  The Influences of Spatial and Motion Properties on Auditory Grouping

                  by

                  Ryan Robart

                  Doctor of Philosophy, Graduate Program in Psychology

                  University of California, Riverside, December 2010

                  Dr. Lawrence D. Rosenblum, Chairperson

                  Despite a plethora of research and theory on spatial hearing and the perceptual organization of sound, the question of the relative importance of spatial and frequency relations in low level auditory grouping remains (Bregman, 1990; Rogers & Bregman, 1993; 1998; Strybel and Neale 1998; Kubovy & VanValkenberg, 2001). Most researchers share the assumption that frequency relations of sounds dominate spatial relations in the perceptual organization of sound. In a natural context, sound sources (e.g. automobiles) create sound that has a broad range of frequency content, but a limited -and often predictable-- range of motion. It could be that in a natural context, the coherent movement of sound components may be more important in forming auditory groups than frequency similarity among those components. The research conducted in this project tested a new theory that assumes spatial relations can dominate frequency relations in grouping (dynamic spatial assessment after initial localization [DSAIL]). Based on the free-field methods used by Rogers & Bregman (1993; 1998), listeners' in these experiments reported the extent of their perceptual grouping of simple tone sequences under various spatial manipulations. In many cases, the results showed that grouping varied systematically with coherent motion-type [opposite trajectory vs shared trajectory] and angular separation [far (>90°) vs near (<90°) among the tones. The implications of these results are discussed.

                    Cover page: The Influences of Spatial and Motion Properties on Auditory Grouping
                    • Article
                    • Peer Reviewed
                    UC San Diego Previously Published Works (2021)
                    Most of the existing literature concerning the links between built environment and COVID-19 outcomes is based on aggregate spatial data averaged across entire cities or counties. We present neighborhood level results linking census tract-level built environment and active/sedentary travel measures with COVID-19 hospitalization and mortality rates in King County Washington. Substantial variations in COVID-19 outcomes and built environment features existed across neighborhoods. Using rigorous simulation-assisted discrete outcome random parameter models, the results shed new lights on the direct and indirect connections between built environment, travel behavior, positivity, hospitalization, and mortality rates. More mixed land use and greater pedestrian-oriented street connectivity is correlated with lower COVID-19 hospitalization/fatality rates. Greater participation in sedentary travel correlates with higher COVID-19 hospitalization and mortality whereas the reverse is true for greater participation in active travel. COVID-19 hospitalizations strongly mediate the relationships between built environment, active travel, and COVID-19 survival. Ignoring unobserved heterogeneity even when higher resolution smaller area spatial data are harnessed leads to inaccurate conclusions.
                      Cover page: Neighborhood-level COVID-19 hospitalizations and mortality relationships with built environment, active and sedentary travel
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