169,844 research outputs found
L’utilizzo di tecniche diagnostiche non invasive per la diagnosi precoce di tumori cutanei nei lavoratori outdoor
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Autistic traits moderate the impact of reward learning on social behaviour
No full textA deficit in empathy has been suggested to underlie social behavioural atypicalities in autism. A parallel theoretical account proposes that reduced social motivation (i.e., low responsivity to social rewards) can account for the said atypicalities. Recent evidence suggests that autistic traits modulate the link between reward and proxy metrics related to empathy. Using an evaluative conditioning paradigm to associate high and low rewards with faces, a previous study has shown that individuals high in autistic traits show reduced spontaneous facial mimicry of faces associated with high vs. low reward. This observation raises the possibility that autistic traits modulate the magnitude of evaluative conditioning. To test this, we investigated (a) if autistic traits could modulate the ability to implicitly associate a reward value to a social stimulus (reward learning/conditioning, using the Implicit Association Task, IAT); (b) if the learned association could modulate participants’ prosocial behaviour (i.e., social reciprocity, measured using the cyberball task); (c) if the strength of this modulation was influenced by autistic traits. In 43 neurotypical participants, we found that autistic traits moderated the relationship of social reward learning on prosocial behaviour but not reward learning itself. This evidence suggests that while autistic traits do not directly influence social reward learning, they modulate the relationship of social rewards with prosocial behaviou
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
I debiti fuori bilancio degli enti locali e delle regioni
No full textIl testo vuole essere un ausilio per amministratori, funzionari e organi di revisione interna degli enti territoriali, e per i tanti operatori di diritto che quotidianamente si confrontano con le problematiche connesse a spese irregolarmente effettuate che devono essere ricondotte a sistema attraverso il provvedimento di riconoscimento di debito fuori bilancio. Accanto alla ricostruzione storica dell’istituto e delle sue modifiche attraverso l’evoluzione normativa e giurisprudenziale di legittimità e di merito, il testo si sofferma sulla analisi dell’iter procedimentale volto al riconoscimento del debito irritualmente assunto, esaminando le differenti ipotesi elencate nell’art. 194 del d.lgs. n. 267/2000 e nell’art. 73 del d.lgs. n. 118/2011: delineandone sia i conseguenti profili civilistici, sia quelli attinenti alle specifiche conseguenze in termini di responsabilità davanti alla Corte dei conti. L’istituto del riconoscimento dei debiti fuori bilancio, ponendosi quindi al delicato crocevia della disciplina civilistica, amministrativa e giuscontabile, postula, pertanto, una conoscenza accurata ed approfondita dei relativi presupposti, differenziandosi da fattispecie analoghe quali le passività pregresse e potenziali e la transazione. In ragione di ciò, il Volume contiene al termine uno specifico approfondimento dedicato alle verifiche intestate all’organo di revisione in occasione del provvedimento di riconoscimento da parte del Consiglio, corredato da una puntuale check list per redigere il previsto parere
SO2 resistant soot oxidation catalysts based on orthovanadates
No full textMetal orthovanadates based on Fe, Al and Ce were prepared by co-precipitation and their structural,
morphological and reduction properties were characterized by means of XRD, BET and temperature
programmed reduction (H2-TPR). Catalytic soot oxidation was carried out with thermogravimetric analysis
(TGA) and temperature programmed oxidation (TPO), respectively, to study the influence of the soot-catalyst
contact (tight or loose) as well as the influence of SO2 contamination on the catalyst's activity. The catalysts were
compared with CeO2 as reference material. Under tight contact mode, metal orthovanadates were able to oxidize
soot at 466–483 °C while in loose contact mode their activity was close to that of CeO2. However, the former did
not suffer an activity loss due to SO2 poisoning, which is attributed to less adsorptive interactions between SO2
and the vanadates as could be proven by FT-IR and Raman spectroscopy
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
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