313 research outputs found
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Outstanding Junior Investigator Award. Final report
No full textThe OJI supported research of J. Ellison has been concentrated in two areas: study of W{gamma} and Z{gamma} production at the Tevatron, which probes the trilinear boson coupling; design, fabrication and testing of silicon microstrip detectors for the D0 upgrade silicon tracking system. The W{gamma} analysis using data from the first D0 run ({approximately}14 pb{sup {minus}1} integrated luminosity) has been completed - J. Ellison and a postdoctoral research working with him (B. Choudhary) were responsible for the muon channel analysis. This analysis is an important test of the Standard Model (SM), since it probes the nature of the WW{gamma} coupling, which is related to the W boson magnetic dipole and electric quadrupole moments. Any deviation from the SM value of the WW{gamma} coupling would be an indication of either composite structure of the W or higher order loop corrections involving physics beyond the SM. The analysis has resulted in the world`s most sensitive limits on the WW{gamma} coupling parameters. In addition the author has also worked on an analysis of Z{gamma} production which has yielded sensitive limits on the ZZ{gamma} and Z{gamma}{gamma} couplings. The work on the D0 Silicon Tracker has also made very good progress. The team led by J. Ellison includes two postdoctoral researchers (A. Bischoff and C. Boswell), one graduate student (M. Mason) and three undergraduate students. They have fully evaluated proptotype detectors which were designed at UCR and have completed a detailed simulation study of the detector performance for different strip geometries. The results were used to optimize the design of the final D0 detectors, for which UR has sole responsibility. The author has completed the mask design for the 3-chip barrel detectors and production of the final detectors as now begun
People at UHS Reunion
No full textUintah High School class mates visit during their fifteenth year reunion. Left to right: Glen Goodrich, Jane Ellison Morgan, Clara Burns Miller, Frank Hatch
UHS Reunion, Class of 1948
No full textUintah High School reunion, Class of 1948. Kneeling: Pudge Merkley, Jude Hacking. Second Row: Dan Thacker, Dick Karren, Glen Goodrich, Frank Hatch, Dan Turner, Halt Wardle, David Roberts, Wayne Wilkins. Third Row: Jane Ellison Morgan, Gloria Wallis Rytting, Gwen Viele Eddington, Ruth Hodgkinson Winn, Leora McCarrell Hazelbush, Clara Burns Miller, Maxine Pederson McKee, Maurine Peterson Freestone, Enid Goodrich Murray. Back Row: Ted Colton, Gary Stewart, Jim Campbell, Marie Manwaring Campbell, Bob Williams, Beverly Fisher Williams, Max Murray, Nila Weeks Murray, Duane Hall, Merlene Hall, Carl Heine
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'A daughter come home?': the travel writings of Colleen J. McElroy
No full textUintah High School Class of 1948 Reunion 1988
No full textUintahHigh Class of 1948 fourty year reunion. Row 1: Marvin Merrell, Gene Stewart, Duane Hall, Holt Wardle, Wayne Hall. Row 2: Vonda Lee Fletcher Curtis, Lola Gurr Peterson, Merlene Mc Neill Hall, Loraine Pope, Dick Karren, Gary Stewart, Joella Johnson, Tony Openshaw Reynolds; Row 3: Elaine Murray Bascom, Ruth Hodgkinson Winn, Nila Weeks Murray, Carol Manwaring Southam, Enid Goodrich, Mary Helen Merkley, Marva Batty, Maurine Freestone, Gloria Wallis, Fay Fleming Brewer, Veon McLean, Jeannine Gardiner, Lila Collier Caldwell, Leora McCarrell Hazlebush. Row 4: Lorin Merkley, Don Slaugh, Jude Hacking Udell Gardiner, Bob Williams, Dan Thacker, Patty Jane Ellison, Jim Montgomery, Tobe Wilkins, Troy Burton, Wayne Martinson, Ray Hunting
Concentration in Knowledge Output: A case of Economics Journals
No full textThis paper assesses the degree of author concentration in seven economics journals, which were published in India during 1990-2002. To measure the degree of author concentration, Lotka's Law was used. Moreover, we also make an exploratory analysis of the geographic, economics subfield and institutional concentration in 704 economics journals. An important finding of this paper is that specialized journals in the sample report the highest degree of author concentration. This result is quite similar to the findings by Cox and Chung (1991). Furthermore, there are several instances showing that the journals lean towards certain norms; this may affect the flow of innovative ideas into economics. We conclude that a knowledge activity, involving the high degree of concentration and a biased publication process, may affect the flow of new ideas into the discipline.Concentration, Lotka's Law
Does a textured coating alter bat activity and behavior in proximity to wind turbine towers?
No full textWind turbines kill large numbers of migratory bats. There is therefore a need to alleviate batwind turbine collisions. Research has shown that bats approach and interact with the smooth tower surfaces as if they provide resources (i.e., water and food). We hypothesized that a textured coating would disrupt the smooth surface and potentially result in decreased bat activity in proximity to towers, thereby reducing collision risk. We conducted a paired behavioral survey using thermal, night vision, and ultrasonic acoustic technologies to assess bat activity at 2 pairs of wind turbines (containing a textured and control turbine) in north-central Texas. We found no difference in overall bat activity between smooth and textured turbines, however, we did find some responses to the texture that were species-specific. Our results demonstrate the importance of texture design and suggest that multple mitigation strategies should be used to account for species-specific variation in activity and behavior
Cluster Analysis using Microgreographic data
No full textIn this paper we try to identify manufacturing and service clusters in Spain, using data from Mercantile Registers of 2006. The proposed methodology partially follows contributions of Duranton and Overman (2005), Brenner (2003 and 2004) and Ellison and Glaser (1997), but departing from them we improve such approaches by several ways. In order to sum up, we can detail our approach and divide it into five stages. Firstly, we divide space into homogeneous cells. Secondly, we create industry specific maps departing from firms’ georeferenced data. Thirdly, we create multiple random industry specific maps under two conditions: i) total number of firms at each industry remains constant and ii) total number of firms at each cell remains constant. Fourthly, we compare the observed spatial distribution of firms with random simulations of such distribution and we check if there is some kind of concentration compared to the random distribution. Fifthly, for each industry we map the areas where the concentration of firms is significantly higher than expected. Previous scheme allows us to identify real clusters (of different shapes and sizes) for all range of manufacturing and service activities and to use this information to design public policies related to such industries. Keywords: cluster analysis, geographic data, microeconomics, regional economics.
Concentration in Knowledge Output:A Case of Economics Journals
No full textJournals moderate knowledge activity in economics. The activity of publishing article in professional journal forms significant part of knowledge output. Output of economics articles has been growing over the time. We examine an important question: Is there any case of institutional or location concentration in knowledge production? This paper analyses concentration indicators specific to economics journals and explores link between publication process and concentration. The analysis of various concentration measures present evidence for institutional-geographic-area-author concentration in Knowledge production in Economics. High concentration levels indicate possibility of institutional lock-in. The literature provides evidence for myopic refereeing, editorial favouritism and the presence of ‘lock-in’ effect. The achievement in journal publication is influenced by factors like institutional affiliation, propitious circumstances etc. Discussion carried out in this paper hints the possibility of causal link between unfair process and unfair outcome.Knowledge,Lotka's Law,Fourier Series
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