Search results for "NTIME"
showing 10 items of 400 documents
Medium-Term Culture of Primary Oral Squamous Cell Carcinoma in a Three- Dimensional Model: Effects on Cell Survival Following Topical 5-Fluororacile …
2012
Since the activity of several conventional anticancer drugs is restricted by resistance mechanisms and dose-limiting side-effects, the design of formulations for local application on malignant lesions seems to be an efficient and promising drug delivery approach. In this study, the effect of locally applied 5-FU on cell death was evaluated both in a SCC4/HEK001 model and in a newly proposed 3D outgrowth model of oral squamous cell carcinoma (OSCC). Initially, the optimal drug dose was established by delivery of solutions containing different amounts of 5-FU. The solution containing 1% (w/v) of 5-FU resulted effective in inducing cell death with complete eradication of cell colonies. Buccal …
Jean-Baptiste Du Bos e Jean-Jacques Rousseau. Un’estetica del sentimento.
2014
La ricerca avviata sul rapporto tra l’Abbé Du Bos e Jean–Jacques Rousseau è rivolta a rintracciare presenze dubosiane (esplicite o implicite) all’interno degli scritti rousseauiani e, secondariamente, a indicare come alcuni temi affrontati da Du Bos nelle sue Réflexions critiques sur la poésie et la peinture (1719) trovino spazio di adesione, problematizzazione, approfondimento, revisione o negazione in Rousseau. I due versanti del lavoro di ricerca sono quindi strettamente legati tra di loro: il secondo nasce dal primo per ‘gemmazione’, ed è decisivo per tentare di individuare il profilo del pensiero estetico di Rousseau. Un primo passo nella ricerca (svolto nei primi due capitoli della te…
Guided Tour Influence on Cruise Tourist Experience in a Port of Call: An eWOM and Questionnaire-Based Approach
2016
The study aims at exploring the importance of guided tours in cruise tourists experience while visiting a port of call and analyzing qualitative (electronic word of mouth from Tripadvisor) and quantitative (personal interviews with tourists) data. The results obtained from the electronic word of mouth analysis suggest that taking a guided tour is a highly satisfactory and sentimentally positive experience for the cruise tourist. Moreover, the empirical findings revealed that taking a guided tour has a moderating effect on (1) the interaction between destination image–satisfaction, (2) the satisfaction–loyalty causal relationship and (3) the destination image formation process regarding the …
Sentiment Analysis of Twitter in Tourism Destinations
2020
[EN] Given the importance of electronic word of mouth (eWOM), this paper analyses the content of messages generated by users related to a tourist destination and shared through Twitter. We propose three research questions regarding eWOM behaviour in Twitter focused on the expertise of the reviewer, sentiment analysis of a tweet and its content.In order to address those research questions we carry out text mining analysis by retrieving existing information on Twitter (over 1500 tweets) regarding to Venice as a tourist destination.
A Data-Driven Approach to Dynamically Learn Focused Lexicons for Recognizing Emotions in Social Network Streams
2016
Opinion Mining aims at identifying and classifying subjective information in a collection of documents. A variety of approach exists in literature, ranging from Supervised Learning to Unsupervised Learning. Currently, one of the biggest opinion resource of opinionated texts existing on the Web is represented by Social Networks. Networks are not only a vast collection of documents but they also represent a dynamic evolving resource as the users keep posting their own opinions. We based our work relying on this idea of dynamicity, building an evolving model that updates itself in real time as users submit their posts. This is done through a set of supervised techniques based on a Lexi- con of…
How News Affect the Trading Behavior of Different Categories of Investors in a Financial Market
2012
We investigate the trading behavior of a large set of single investors trading the highly liquid Nokia stock over the period 2003-2008 with the aim of determining the relative role of endogenous and exogenous factors that may affect their behavior. As endogenous factors we consider returns and volatility, whereas the exogenous factors we use are the total daily number of news and a semantic variable based on a sentiment analysis of news. Linear regression and partial correlation analysis of data show that different categories of investors are differently correlated to these factors. Governmental and non profit organizations are weakly sensitive to news and returns or volatility, and, typica…
Equity Issues in the Spanish Stock Market: Windows of Opportunity, Earnings Management or Market Timing?
2005
We investigate whether the market sentiment and/or the specific operating performance of firms that conducted an equity issue on the Spanish stock market during the period 1993-2000 are related to the long-run stock-return underperformance in the year following the issue of small and medium firms. Our results reveal that equity issues were conducted by large firms just when the market showed optimistic expectations towards large firms in general. This overoptimism towards large issue firms was related to the 1990s technology boom in the case of initial public offerings (IPO), but we detect earnings management by large firms that conducted a seasoned equity offering (SEO). In this context, s…
Transparency of peer review: a semi-structured interview study with chief editors from social sciences and humanities
2021
Background Open peer review practices are increasing in medicine and life sciences, but in social sciences and humanities (SSH) they are still rare. We aimed to map out how editors of respected SSH journals perceive open peer review, how they balance policy, ethics, and pragmatism in the review processes they oversee, and how they view their own power in the process. Methods We conducted 12 pre-registered semi-structured interviews with editors of respected SSH journals. Interviews consisted of 21 questions and lasted an average of 67 min. Interviews were transcribed, descriptively coded, and organized into code families. Results SSH editors saw anonymized peer review benefits to outweigh t…
Pas de titre traduit
2011
This research work adresses the prediction of success after a training scheme (success in university examination, integration of job seekers after a training session) on the basis of 1/ subjective indicators at the end of training: satisfaction or subjective learning and 2/ individuals' variables (self-efficacy, locus of control, self-esteem, optimism and core self-evaluation). Our results show that, compared to training evaluation models, subjective indicators at the end of training do not appear to be good predictors of success. In addition, if individuals' variables are sometimes predictable of success, this seems to be related to the mere fact that they represent high values in students…
Media Tone Goes Viral: Global Evidence from the Currency Market
2020
Using several million news and social media articles related to currencies, we examine the role of media tone in predicting the exchange rate returns of 12 developed and 24 emerging markets from 1998 to 2016. The text-based currency Media tone is a strong positive predictor of currency excess returns beyond fundamentals of one to three months ahead and six months cumulatively, with the average in-sample and out-of-sample R^2s of 4.45% and 9.03% in the US. The one-month predictability is observed in four other developed markets and 18 emerging market currencies, with the latter showing a stronger pattern. This predictability encompasses previous month currency returns, currency factors, macr…