170,160 research outputs found
Discussion of "Interim Analyses: The Repeated Confidence Interval Approach" by C. Jennison and B. W. Turnbull
No full text5 pages, 1 article*Discussion of "Interim Analyses: The Repeated Confidence Interval Approach" by C. Jennison and B. W. Turnbull* (Casella, George) 5 page
Energy Efficient Homes: Incentive Programs for Energy Efficiency
No full textFCS-3268, a 4-page fact sheet by Nicholas W. Taylor, M. Jennison Kipp, and Kathleen C. Ruppert, is part of the Energy Efficient Homes series. It defines key terms, tells who offers energy incentives, what types of incentives there are, and what considerations homeowners should have. Includes references. Published by the UF Department of Family, Youth and Community Sciences, June 2008
Energy Efficient Homes: Easy Steps to Improving Your Home's Energy Efficiency
No full textFCS-3267, a 5-page fact sheet by Nicholas W. Taylor, M. Jennison Kipp, and Kathleen C. Ruppert, is part of the Energy Efficient Homes series. It provides an overview of steps that Florida residents can take to reduce their home’s energy demand, improve its efficiency, and reduce their energy bills. Includes references. Published by the UF Department of Family, Youth and Community Sciences, June 2008
The low frequency structure of Cassiopeia
No full textThe general structure of the supernova remnant Cassiopeia A is described, with particular reference to the optical jet of fast moving knots, the low frequency anomaly and previous VLBI results. The implementation of a three station interferometer system, measuring the visibility function of the nebula at 38MHz along a mean position angle of 83°, is described; both the closure results and the reconstructed visibility function are presented, from which a significant asymmetry in the source structure is evident. The results are interpreted by Fourier transforming the weighted visibility data, regularly gridded by interpolation of the reconstructed visibility function. The resultant, convolved brightness distribution of the nebula is compared with distributions synthesized to the same resolution, from the results of Jennison and Latham, and Matheson.
A model fitting procedure is described, based on a two component, four parameter model, from which it is concluded that the results are consistent with a symmetrical nebula of radius 135±3 arcsec. with a jet, of indeterminate width, containing between 4% to 6% of the total flux at a distance of 200±20 arcsec. east of the source phase centre.
The remarkable coincidence of the point source solutions of the model fitting procedure with some of Hutton et. al.'s results at slightly higher frequencies is pointed out, and the likelihood of a relationship between the new asymmetrical component and the optical and X-ray jet is commented on. A brief discussion of the astrophysical consequences of the asymmetrical component follows, with reference to a possible association between the jet and the low frequency anomaly
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
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
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
Noninvasive monitoring of rejection: soluble interleukin-2 receptor levels may predict subsequent acute allograft rejection in the transplanted heart
No full textThe predictive value of soluble interleukin 1 receptor level monitoring in the detection of acute cardiac allograft rejection
No full textA Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
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