Search results for "ISING"
showing 10 items of 1141 documents
Confined Crystals on Substrates: Order and Fluctuations in Between One and Two Dimensions
2010
The effect of lateral confinement on a crystal of point particles in d = 2 dimensions in a strip geometry is studied by Monte Carlo simulations and using phe- nomenological theoretical concepts. Physically, such systems confined in long strips of width D can be realized via colloidal particles at the air-water interface, or by adsorbed monolayers at suitably nanopatterned substrates, etc. As a generic model, we choose a repulsive interparticle potential decaying with the twelfth inverse power of distance. This system has been well studied in the bulk as a model for two- dimensional melting. The state of the system is found to depend very sensitively on the boundary conditions providing the …
Ordering of two-dimensional crystals confined in strips of finite width.
2007
Monte Carlo simulations are used to study the effect of confinement on a crystal of point particles interacting with an inverse power law potential $\ensuremath{\propto}{r}^{\ensuremath{-}12}$ in $d=2$ dimensions. This system can describe colloidal particles at the air-water interface, a model system for experimental study of two-dimensional melting. It is shown that the state of the system (a strip of width $D$) depends very sensitively on the precise boundary conditions at the two ``walls'' providing the confinement. If one uses a corrugated boundary commensurate with the order of the bulk triangular crystalline structure, both orientational order and positional order is enhanced, and suc…
Exploring the effects of gender, age, income and employment status on consumer response to mobile advertising campaigns
2008
PurposeThe purpose of this paper is to examine the effects gender, age, income and employment status on consumer response to short message service (SMS)‐oriented direct‐response requests or a call‐to‐action tactic in a television advertisement or program, consumer's participation in SMS sweepstakes or other competitions, and consumer uptake of mobile services such as ringtones, logos, screensavers and wallpapers ordered by SMS message.Design/methodology/approachThe data used in this study were collected via an online survey. A total of 4,062 consumers responded to this survey. Cross‐tabulation and binary logistic regression were used to examine the associations between the explanatory varia…
The Revival of Indonesian Skin Care Brands
2020
Skincare business in Indonesia has been growing enormously in the last decade, with the coming of international brands and the struggling of local brands, to win the Indonesian customers. The aim of this research is to analyze the influence of country of origin to purchase decision through the brand image, and the impact of country of origin on customer satisfaction for local Indonesian skin care brands. As this research is using the quantitative approach, the data are collected by using questionnaires which are distributed to selected samples of 179 respondents. The respondents are chosen from the consumers of Indonesian brands of skin care products. The data are analyzed with SmartPLS sof…
L’évolution de la structure de financement des organisations muséales : éclairage sur le rôle des endowment funds
2011
Rompant avec une longue tradition de financement public, certaines grandes institutions muséales européennes voient la part de leur financement privé augmenter considérablement. Cette évolution s’accompagne de la possibilité d’investir cet argent sur les marchés financiers à travers des endowment funds. L’objectif de cet article est de proposer un éclairage sur ce nouveau moyen offert aux musées de gérer leur capital financier. Pour se faire, nous examinerons le système muséal américain où les endowments sont la règle. Cette analyse nous permettra de comprendre ce que recouvre cette notion, d’appréhender ses modalités de mise en oeuvre et de saisir les bénéfices et les risques auxquels les …
Global Spaces for Local Politics: An Exploratory Analysis of Facebook Ads in Spanish Election Campaigns
2021
[EN] Sponsored content on Facebook has become an indispensable tool for implementing political campaign strategies. However, in political communication research, this channel is still unexplored due to its advertising model in which only target audiences are exposed to sponsored content. The launching of the Facebook Ad Library in May 2018 can be considered a turning point in this regard, inasmuch as it now offers users direct access to ads paid for by political parties, among other advertisers. This paper analyzes some aspects of the strategies implemented by six national parties during the campaigns running up to the two general elections held in Spain in 2019, by performing an analysis o…
Identifying the k Best Targets for an Advertisement Campaign via Online Social Networks
2020
We propose a novel approach for the recommendation of possible customers (users) to advertisers (e.g., brands) based on two main aspects: (i) the comparison between On-line Social Network profiles, and (ii) neighborhood analysis on the On-line Social Network. Profile matching between users and brands is considered based on bag-of-words representation of textual contents coming from the social media, and measures such as the Term Frequency-Inverse Document Frequency are used in order to characterize the importance of words in the comparison. The approach has been implemented relying on Big Data Technologies, allowing this way the efficient analysis of very large Online Social Networks. Resul…
New Media E-marketing Campaign. Case Study for a Romanian Press Trust
2014
Abstract The impact of new media on the organization of the companies has increased a lot in the recent years. This was achieved either through the implementation of new media tools for the business management, or by opening up to clients or other companies using social media. Attracting new customers and communicate with them by using social media platforms such as Facebook or Twitter that have become a necessity. In this work we have done a case study applied to press trust in Romania. For a period of 2 years will be done a total of 5 marketing campaigns on the social network platform Facebook. In this paper we will present the results of the first three campaigns, the other two still bei…
Drivers and barriers to online airline ticket purchasing
2009
Although online sales of airline tickets are growing, many travellers are still reluctant to use the web as a purchase channel. Given the cost advantages of online sales for airlines, it is useful for them to know the main drivers and barriers affecting the use of the Internet to purchase tickets. This study analyses the influence of risk, perceived usefulness and perceived ease of use on the airline ticket online purchase intention. The results of a survey show that perceived purchase risk and perceived usefulness exercise a direct influence on airline ticket purchasing intentions, while perceived ease of use has an indirect influence through perceived usefulness. Psychological risk, perfo…
Selective attention in the news feed: An eye-tracking study on the perception and selection of political news posts on Facebook
2018
Social networking sites such as Facebook are becoming increasingly important as a source for news. However, few studies have investigated what drives attention to content within the news feed and what influences the selection of news posts. We hypothesized that attitude consistency, the credibility of a source, and comments of other users raise interest in a news post in the news feed and influence the selection decision. A 2 × 2 × 2 laboratory experiment ( N = 103) using eye-tracking measurement showed that attitude consistency did not influence attention distribution in the news feed, but users preferred to select news posts with content reinforcing their attitudes. Participants spent mor…