A study on usability criteria regarding interfaces for children

Comunicação apresentada no Interact 2005 Workshop - "Child computer interaction : methodological reasearch", Rome, Italy, 13 Setembro 2005.Building an application's interface is always an attempt to match the software functions with the users' mental model. This task is complicated enough when an adult is designing the interface to other adults. When the users are children, the challenge is harder still. How can the users' mental model be predicted? This communication deals with a study that aims to answer this question, going from the characteristics of the children cognitive thought to the discovery of efficient design guidelines for interfaces

The “Americanization” of Global Education: A Comparative Study of American and Italian Students at John Cabot University in Rome, Italy

With the turn of the century, the rise of globalization has greatly impacted, and continues to impact, the development of nation-states’ economies and native cultures. This international phenomenon generates the idea that countries are now on a similar playing field, whether that be culturally, economically, or politically. While it is hard to defend the latter, globalization has seemingly “flattened” the world by way of bringing individuals of different cultures, ethnicities, races, genders, and nationalities closer together. Moreover, as citizens of this internationalized community, we see a specific type of cultural globalization through increased opportunities in travel, the rise in number of international organizations, and the concept of borderless education. This study highlights one essential component of the aforementioned cultural globalization: the rise of global education and the so-called “Americanization” of classrooms abroad. As a dual citizen of Italy and the United States of America, it is important for me to examine the relationship that these two countries possess in the realm of education with a more critical viewpoint, observing the impact that certain channels of American education have on native Italian culture, language, and schooling. Through personal interviews with Italian and American students alike, this thesis compares the experiences of student groups at one particular American university in Rome, Italy: John Cabot University. These conversations combined with academic research generate the scale to which Americans interact with the “local” in their host countries, as well as the education that Italians feel that they are receiving. All in all, with recent developments by prominent universities in creating American campuses abroad, it is manifested that this topic is becoming more relevant than ever in discussions on international education and the use of soft power in higher education

An interprofessional, intercultural, immersive short-term study abroad program: public health and service systems in rome

The purpose of this paper is to describe a short-term study abroad program that exposes engineering and nursing undergraduate students from the United States and Italy to an intercultural and interprofessional immersion experience. Faculty from Purdue University and Sapienza Università di Roma collaborated to design a technical program that demonstrates the complementary nature of engineering and public health in the service sector, with Rome as an integral component of the program. Specifically, the intersection of topics including systems, reliability, process flow, maintenance management, and public health are covered through online lectures, in-class activities and case study discussions, field experiences, and assessments. Herein, administrative issues such as student recruitment, selection, and preparation are elucidated. Additionally, the pedagogical approach used to ensure constructive alignment among the program goals, the intended learning outcomes, and the teaching and learning activities is described. Finally, examples of learning outcomes resulting from this alignment are provided

Targeting mGlu5 metabotropic glutamate receptors in the treatment of cognitive dysfunction in a mouse model of phenylketonuria

We studied group-I metabotropic glutamate (mGlu) receptors in Pah(enu2) (ENU2) mice, which mimic the genetics and neurobiology of human phenylketonuria (PKU), a metabolic disorder characterized, if untreated, by autism, and intellectual disability (ID). Male ENU2 mice showed increased mGlu5 receptor protein levels in the hippocampus and corpus striatum (but not in the prefrontal cortex) whereas the transcript of the mGlu5 receptor was unchanged. No changes in mGlu1 receptor mRNA and protein levels were found in any of the three brain regions of ENU2 mice. We extended the analysis to Homer proteins, which act as scaffolds by linking mGlu1 and mGlu5 receptors to effector proteins. Expression of the long isoforms of Homer was significantly reduced in the hippocampus of ENU2 mice, whereas levels of the short Homer isoform (Homer 1a) were unchanged. mGlu5 receptors were less associated to immunoprecipitated Homer in the hippocampus of ENU2 mice. The lack of mGlu5 receptor-mediated long-term depression (LTD) in wild-type mice (of BTBR strain) precluded the analysis of hippocampal synaptic plasticity in ENU2 mice. We therefore performed a behavioral analysis to examine whether pharmacological blockade of mGlu5 receptors could correct behavioral abnormalities in ENU2 mice. Using the same apparatus we sequentially assessed locomotor activity, object exploration, and spatial object recognition (spatial novelty test) after displacing some of the objects from their original position in the arena. Systemic treatment with the mGlu5 receptor antagonist, MPEP (20 mg/kg, i.p.), had a striking effect in the spatial novelty test by substantially increasing the time spent in exploring the displaced objects in ENU2 mice (but not in wild-type mice). These suggest a role for mGlu5 receptors in the pathophysiology of ID in PKU and suggest that, also in adult untreated animals, cognitive dysfunction may be improved by targeting these receptors with an appropriate therapy

Ensuring Cyber-Security in Smart Railway Surveillance with SHIELD

Modern railways feature increasingly complex embedded computing systems for surveillance, that are moving towards fully wireless smart-sensors. Those systems are aimed at monitoring system status from a physical-security viewpoint, in order to detect intrusions and other environmental anomalies. However, the same systems used for physical-security surveillance are vulnerable to cyber-security threats, since they feature distributed hardware and software architectures often interconnected by ‘open networks’, like wireless channels and the Internet. In this paper, we show how the integrated approach to Security, Privacy and Dependability (SPD) in embedded systems provided by the SHIELD framework (developed within the EU funded pSHIELD and nSHIELD research projects) can be applied to railway surveillance systems in order to measure and improve their SPD level. SHIELD implements a layered architecture (node, network, middleware and overlay) and orchestrates SPD mechanisms based on ontology models, appropriate metrics and composability. The results of prototypical application to a real-world demonstrator show the effectiveness of SHIELD and justify its practical applicability in industrial settings

Many homes for tourism:re-considering spatializations of home and away in tourism mobilities

Tourism mobilities have long been spatialized as circular structures emanating from a primary home that is opposed to a space of ‘away’. Increasingly complex personal mobilities and experiences with multiple homes, however, challenge the assumptions on which this spatialization of tourism rests. This article utilizes an analysis of travel memoir narratives of return home and second home mobilities to deconstruct the oppositions within traditional spatializations of tourism, revealing in the process the way in which the everyday and tourism are entangled and interactive. Memoir authors construct complex relationships between spaces and places, wherein second homes can inspire new tourism practices at both unfamiliar locations and primary homes, and returning to previous homes can involve tourism of and at home. A consideration of these relationships reveals the difficulty of labeling mobilities as essentially touristic and suggests possibilities for new spatializations, ontology and methodologies that leave room for many homes for tourism

How widespread is preaspiration in Italy?

Preaspiration is a comparatively rare phonetic feature, almost entirely confined to languages spoken in far northwestern Europe (Andersen 2002; Helgason 2002). A recent acoustic phonetic investigation into consonant gemination in Sienese Italian (e.g. Stevens & Hajek 2007), however, found that preaspiration occurred in one third of geminate /pp tt kk/ tokens. Up until that point preaspirated stops had not been reported to occur in Sienese or any other variety of Italian including the standard language. With this in mind, the present paper presents the results of an acoustic phonetic investigation into voiceless geminate stops /pp tt kk/ in a controlled corpus of words read by speakers from 15 other Italian cities. Results are analysed according to city as well as factors (e.g. speaker sex, vowel type) known to favour occurrences of preaspiration in other better known preaspirating languages. Preliminary duration values are presented and results are discussed in terms of two specific hypotheses regarding the rise of preaspiration in Sienese Italian

Neurophysiological correlates of embodiment and motivational factors during the perception of virtual architectural environments

The recent efforts aimed at providing neuroscientific explanations of how people perceive and experience architectural environments have largely justified the initial belief in the value of neuroscience for architecture. However, a systematic development of a coherent theoretical and experimental framework is missing. To investigate the neurophysiological reactions related to the appreciation of ambiances, we recorded the electroencephalographic (EEG) signals in an immersive virtual reality during the appreciation of interior designs. Such data have been analyzed according to the working hypothesis that appreciated environments involve embodied simulation mechanisms and circuits mediating approaching stimuli. EEG recordings of 12 healthy subjects have been performed during the perception of three-dimensional interiors that have been simulated in a CAVE system and judged according to dimensions of familiarity, novelty, comfort, pleasantness, arousal and presence. A correlation analysis on personal judgments returned that scores of novelty, pleasantness and comfort are positively correlated, while familiarity and novelty are in negative way. Statistical spectral maps reveal that pleasant, novel and comfortable interiors produce a de-synchronization of the mu rhythm over left sensorimotor areas. Interiors judged more pleasant and less familiar generate an activation of left frontal areas (theta and alpha bands), along an involvement of areas devoted to spatial navigation. An increase in comfort returns an enhancement of the theta frontal midline activity. Cerebral activations underlying appreciation of architecture could involve different mechanisms regulating corporeal, emotional and cognitive reactions. Therefore, it might be suggested that people's experience of architectural environments is intrinsically structured by the possibilities for action

Interleaving Command Sequences: a Threat to Secure Smartcard Interoperability

The increasingly widespread use of smartcards for a variety of sensitive applications, including digital signatures, creates the need to ensure and possibly certify the secure interoperability of these devices. Standard certification criteria, in particular the Common Criteria, define security requirements but do not sufficiently address the problem of interoperability. Here we consider the interoperability problem which arises when various applications interact with different smartcards through a middleware. In such a situation it is possible that a smartcard of type S receives commands that were supposed to be executed on a different smartcard of type S'. Such "external commands" can interleave with the commands that were supposed to be executed on S. We experimentally demonstrate this problem with a Common Criteria certified digital signature process on a commercially available smartcard. Importantly, in some of these cases the digital signature processes terminate without generating an error message or warning to the user.Comment: 6 pages; published in the 10th WSEAS International Conference on Information Security and Privacy (ISP 2011