126,108 research outputs found
Interview with Arden Albee
No full textAn interview series in three sessions, in August–September 2017, with Arden Albee, professor of geology and planetary science, emeritus, and a key figure in lunar and Martian exploration throughout the ’70s, ’80s, and ’90s. Raised in Michigan, where his early interest in rocks and natural history was nurtured by road trips through the American west, he earned his undergraduate and graduate degrees in geology at Harvard and worked for the US Geological Survey before joining the Caltech faculty in 1959.
At Caltech he pioneered the use of the electron microprobe in petrological studies with colleagues A. Chodos and E. A. Bence, pursued fieldwork in numerous locales, including Greenland, where he and Caltech colleague G. Wasserburg took part in the landmark Oldstone Project to collect and analyze the world’s most ancient rocks, and collaborated in characterizing and dating the moon rocks returned by the Apollo missions.
From 1978 to 1984, he was JPL chief scientist during a transformative period in the lab’s history under successive directors B. Murray and L. Allen. He chaired numerous NASA planetary exploration committees and served as project scientist for the Mars Observer mission and as mission scientist for Mars Global Surveyor. His lengthy tenure, not without controversy, as Caltech’s dean of graduate studies from 1984 to 2000 and his two decades chairing the house committee of the Caltech faculty club, the Athenaeum, are also recounted in this oral history
[Arden Street Project]. Block B
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/456022YFA Job No. 427. Drawing No. 427/D2331454
Sub-item: [1984.0047.02665] "[Arden Street Project]. Block B
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Forefoot pathology in rheumatoid arthritis identified with ultrasound may not localise to areas of highest pressure: cohort observations at baseline and twelve months
No full textBackgroundPlantar pressures are commonly used as clinical measures, especially to determine optimum foot orthotic design. In rheumatoid arthritis (RA) high plantar foot pressures have been linked to metatarsophalangeal (MTP) joint radiological erosion scores. However, the sensitivity of foot pressure measurement to soft tissue pathology within the foot is unknown. The aim of this study was to observe plantar foot pressures and forefoot soft tissue pathology in patients who have RA.Methods A total of 114 patients with established RA (1987 ACR criteria) and 50 healthy volunteers were assessed at baseline. All RA participants returned for reassessment at twelve months. Interface foot-shoe plantar pressures were recorded using an F-Scan® system. The presence of forefoot soft tissue pathology was assessed using a DIASUS musculoskeletal ultrasound (US) system. Chi-square analyses and independent t-tests were used to determine statistical differences between baseline and twelve months. Pearson’s correlation coefficient was used to determine interrelationships between soft tissue pathology and foot pressures.ResultsAt baseline, RA patients had a significantly higher peak foot pressures compared to healthy participants and peak pressures were located in the medial aspect of the forefoot in both groups. In contrast, RA participants had US detectable soft tissue pathology in the lateral aspect of the forefoot. Analysis of person specific data suggests that there are considerable variations over time with more than half the RA cohort having unstable presence of US detectable forefoot soft tissue pathology. Findings also indicated that, over time, changes in US detectable soft tissue pathology are out of phase with changes in foot-shoe interface pressures both temporally and spatially.Conclusions We found that US detectable forefoot soft tissue pathology may be unrelated to peak forefoot pressures and suggest that patients with RA may biomechanically adapt to soft tissue forefoot pathology. In addition, we have observed that, in patients with RA, interface foot-shoe pressures and the presence of US detectable forefoot pathology may vary substantially over time. This has implications for clinical strategies that aim to offload peak plantar pressures
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Arden S. Clegg, Saving the legacy: an oral history of Utah\u27s World War II veterans, ACCN 2070, American West Center, University of Utah
No full textTranscript (45 pages) of an interview by Winston P. Erickson with Arden S. Clegg on July 10, 2000. This is from tape number 62 in the "Saving the Legacy Oral History ProjectArden Clegg (b. 1924) was born in Heber, Utah, and grew up in Utah County. He was drafted into the army and went to Europe on the British ship . He did not participate in the D-Day invasion, but arrived in France via Omaha Beach a few days after the invasion. Among other things, Cleff was a medic. He was a medic in the First General Hopspital on V-E day and describes his recollection of the celebration in Paris. 45 pages
Memoranda regarding the safety of Shearer airstrip, 05 September 1944
No full textThese two memoranda show the continued struggle to keep Shearer operational. Once again, Robert Johnson expresses serious concerns about the condition of the airstrip. The ranger managing Shearer, Arden B. Gundersen, responds by defending his efforts to keep Shearer safe, but agrees that the field is flooded and impossible to drain
[Arden Street Project]. Blocks B, C, D, E, F
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/456019YFA Job No. 427. Drawing No. 427A/E3331451
Sub-item: [1984.0047.02662] "[Arden Street Project]. Blocks B, C, D, E, F
[Arden Street Project]. Blocks B, C, D, E, F
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/456018YFA Job No. 427. Drawing No. 427A/E4331450
Sub-item: [1984.0047.02661] "[Arden Street Project]. Blocks B, C, D, E, F
A Follow-Up Study of Denfeld High School Graduates of 1949
No full textA Paper Presented to the Faculty of the Graduate School, University of Minnesota, A Requirement for the Degree Master of Arts (Plan B), by Robert Arden Olsen, August 1959. The signature on page 2 has been redacted.Olsen, Robert Arden. (1959). A Follow-Up Study of Denfeld High School Graduates of 1949. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/229741
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