Search results for "Sage"

Neuroprotective properties of xenon and helium in an in vitro model of traumatic brain injury: one small step or one big jump?

2008

Crescere e insegnare nella società in rete

2011

A Lightweight Software Architecture for Robot Navigation and Visual Logging through Environmental Landmarks Recognition

2006

A robot architecture with real-time performance in navigation tasks is presented. The system architecture is multi-threaded with shared memory and fast message passing through static signalling. In this paper, we focused on the reactive layer components and its straightforward implementation. The proposed architecture is described with reference to an experimental setup, in which the robot task is visual logging of environmental landmarks detected on the basis of sensor readings. Our experimental results show how the robot is able to identify, make snapshots and log a set of landmarks by matching 2D geometric patterns.

La “desconexión digital” a lomos de la seguridad y salud en el trabajo

2021

The preponderance given to teleworking or remote work due to the health crisis is pushing to blur the line that separates effective work time from leisure and rest time. In the end, it practically causes the employee to never disconnect from work. And this is so because Information and Communication Technologies (ICT) push workers to have a constant time and location availability, even outside their working hours. In this sense, communications from bosses, co-workers or even clients through different means like now are not surprising: emails that need an urgent answer, phone calls at untimely hours or, especially in the sense of this article, through the smartphone, either by SMS messages -…

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…

Short article: Eye movements when reading text messaging (txt msgng)

2009

The growing popularity of mobile-phone technology has led to changes in the way people—particularly younger people—communicate. A clear example of this is the advent of Short Message Service (SMS) language, which includes orthographic abbreviations (e.g., omitting vowels, as in wk, week) and phonetic respelling (e.g., using u instead of you). In the present study, we examined the pattern of eye movements during reading of SMS sentences (e.g., my hols wr gr8), relative to normally written sentences, in a sample of skilled “texters”. SMS sentences were created by using (mostly) orthographic or phonological abbreviations. Results showed that there is a reading cost—both at a local level and at…

User Psychology in Interaction Design: The Role of Design Ontologies

2008

In the various forms of interaction design, it is essential to analyze, understand, and predict human behavior. This is equally true with devices such as information systems that are meant to interact with people. The importance of these problems has inspired scientists to develop numerous approaches to investigate and explicate human actions. However, they have mainly been characterized by intuitive and folk psychological approaches to the human mentality in interaction. To improve the scientific foundations of design, we present here a psychology-based approach to collecting user knowledge, as well as a related design practice. The former can be called user psychology and the latter the a…

Design of SCMA Codebooks using Differential Evolution

2020

Non-orthogonal multiple access (NOMA) is a promising technology which meets the demands of massive connectivity in future wireless networks. Sparse code multiple access (SCMA) is a popular code-domain NOMA technique. The effectiveness of SCMA comes from: (1) the multi-dimensional sparse codebooks offering high shaping gain and (2) sophisticated multi-user detection based on message passing algorithm (MPA). The codebooks of the users play the main role in determining the performance of SCMA system. This paper presents a framework to design the codebooks by taking into account the entire system including the SCMA encoder and the MPA-based detector. The symbol-error rate (SER) is considered as…

Optimisation des requêtes de similarité dans les espaces métriques répondant aux besoins des usagers

2012

The complexity of data stored in large databases has increased at very fast paces. Hence, operations more elaborated than traditional queries are essential in order to extract all required information from the database. Therefore, the interest of the database community in similarity search has increased significantly. Two of the well-known types of similarity search are the Range (Rq) and the k-Nearest Neighbor (kNNq) queries, which, as any of the traditional ones, can be sped up by indexing structures of the Database Management System (DBMS). Another way of speeding up queries is to perform query optimization. In this process, metrics about data are collected and employed to adjust the par…

Adjuvant volumetric-modulated arc therapy with simultaneous integrated boost in endometrial cancer. Planning and toxicity comparison

2014

Objective. To report dosimetric and acute toxicity data in prospectively enrolled high-intermediate risk endometrial cancer (HIR-EC) patients postoperatively irradiated by simultaneous integrated boost volumetric modulated arc therapy (SIB-VMAT). Methods. Thirty prospectively enrolled HIR-EC patients were postoperatively treated by SIB-VMAT. Target coverage, dose homogeneity, and sparing of organs at risk (OARs) were compared with corresponding data retrieved from an historical control (30 consecutive selected matched patients) treated by concomitant boost three-dimensional conformal radiotherapy (3D CRT CB) from a previously published study (ADA-I trial). All patients received 45 Gy on pel…