140,163 research outputs found
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
Notes in Field: MTA from Harvard Sq to Washington St. Elevated from Winter St. to Northampton.
No full textNotes on a field trip from Boston City Hospital to Old North Church, by foot,
Monday, 25 June, conducted as part of the Perceptual Form of the City, a research
project investigating the individual’s perception of the urban landscape
Andrew Field papers
No full textAndrew Field (1938- ) is a scholar, translator, and author, who has published translations of Russian literature, critical studies, biographies, fiction, essays, and travel articles. He holds degrees from Columbia University as well as a Ph.D. from the University of Queensland, Brisbane, Australia. From 1977 to 1979, he was a professor at Griffith University, Brisbane, Australia. Dr. Field's papers consist of materials relating to the writing of his 1983 study of the life and work of Djuna Barnes, Djuna: the Formidable Miss Barnes (alternately entitled Djuna: The Life and Times of Djuna Barnes). Included in the collection are correspondence, manuscripts, research notes, clippings related to the book's publication and reception, and photographs. Also included is a handwritten manuscript of a poem by Barnes
Mose and Beulah Vosse with friends, 1920
No full textCapleville Rd. to Nashoba is the handwritten title given to this picture of Beulah Vosse, Mose Vosse, Grace Isele and Augusta Moskowitz standing in a field of flowers.https://digitalcommons.memphis.edu/speccoll-mss-vossefamily1/1008/thumbnail.jp
Notes in Field - Functional Trip
No full textNotes on a trip from Massachusetts General Hospital to South Station as quickly as possible. These notes were collected as part of the Perceptual Form of the City, a research project investigating the individual’s perception of the urban landscape
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
Orientation Trip - Done During Walk (April)
No full textTape transcription of David Crane's orientation field trip Massachusetts
General Hospital to South Station. The field trip was conducted as part of the
Perceptual Form of the City, a research project investigating the individual’s
perception of the urban landscape
Notes in Field - Faneuil Hall to Symphony Hall
No full textNotes collected as part of the Perceptual Form of the City, a research project
investigating the individual’s perception of the urban landscape
Orientation Trip - Done During Walk (January)
No full textTape transcription of David Crane's field trip from intersection of Mass
Ave & Comm Ave to Chinatown. The field trip was conducted as part of the
Perceptual Form of the City, a research project investigating the individual’s
perception of the urban landscape
Cowpox virus infection in natural field vole Microtus agrestispopulations: significant negative impacts on survival
No full text1. Cowpox virus is an endemic virus circulating in populations of wild rodents. It has been implicated as a potential cause of population cycles in field voles Microtus agrestis L., in Britain, owing to a delayed density-dependent pattern in prevalence, but its impact on field vole demographic parameters is unknown. This study tests the hypothesis that wild field voles infected with cowpox virus have a lower probability of survival than uninfected individuals. 2. The effect of cowpox virus infection on the probability of an individual surviving to the next month was investigated using longitudinal data collected over 2 years from four grassland sites in Kielder Forest, UK. This effect was also investigated at the population level, by examining whether infection prevalence explained temporal variation in survival rates, once other factors influencing survival had been controlled for. 3. Individuals with a probability of infection, P(I), of 1 at a time when base survival rate was at median levels had a 22.4% lower estimated probability of survival than uninfected individuals, whereas those with a P(I) of 0.5 had a 10.4% lower survival. 4. At the population level, survival rates also decreased with increasing cowpox prevalence, with lower survival rates in months of higher cowpox prevalence. 5. Simple matrix projection models with 28 day time steps and two stages, with 71% of voles experiencing cowpox infection in their second month of life (the average observed seroprevalence at the end of the breeding season) predict a reduction in 28-day population growth rate during the breeding season from λ = 1.62 to 1.53 for populations with no cowpox infection compared with infected populations. 6. This negative correlation between cowpox virus infection and field vole survival, with its potentially significant effect on population growth rate, is the first for an endemic pathogen in a cyclic population of wild rodents
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