2,557,301 research outputs found
Oltre la pietra: modelli e tecniche per capire la preistoria
No full textVengono descritti i caratteri fondamentali che definiscono la ricerca preistorica e la ricaduta delle nuove scoperte a carattere scientifico e culturale sulla nostra attuale società, anche in termini di influenze di modi di pensar
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
Decomposable approximations of nuclear <i>C</i><sup>*</sup>-algebras
No full textWe show that nuclear <i>C</i><sup>*</sup>-algebras have a refined version of the completely
positive approximation property, in which the maps that approximately factorize
through finite dimensional algebras are convex combinations of order zero maps.
We use this to show that a separable nuclear <i>C</i><sup>*</sup>-algebra A which is closely
contained in a <i>C</i><sup>*</sup>-algebra B embeds into B
Letter from I. C. Van Der Karr, Kankakee, Illinois, to Agnes M. Wert, Des Moines, Iowa, September 29, 1945
No full textLetter written on business letterhead from I. C. Van Der Karr of Kankakee, Illinois, to Agnes M. Wert of Des Moines, Iowa, concerning the latter's purchase of a grave marker for a deceased family member
The C-I-L Collection : On Tour Since 1962
No full textPresentation of the C-I-L collection, which features paintings by 83 Canadian artists. Statements by some of the artists. Biographical notes
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
Commento all’art. 49 d. lgs. 546/92, in Commentario breve alle leggi del processo tributario, a cura di C. Consolo e C. Glendi, I ed., Padova, 2005
No full textCommentario breve alle leggi del processo tributario, a cura di C. Consolo e C. Glendi, Cedam I ed
[Stammbuch I. C. F. Jahn]
No full text[STAMMBUCH I. C. F. JAHN]
[Stammbuch I. C. F. Jahn] (1)
Cover (1)
Notiz / Besitzvermerk mit Widmung (8)
Einträge Bl. 5 - 30 (11)
Einträge Bl. 31v - 60 (34)
Einträge Bl. 62 - 90 (64)
Einträge Bl. 90v - 103 (93)
Einlage: "Le bonneur d'être aimé" (Noten + Text) (107)
Einlage: Notiz (109
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
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
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