Commercial advertisements are considered informative discourse, whereas the manipulative effects of their verbal and visual strategies have been ignored. According to van Dijk (2006), manipulation in mass media is performed by drawing the audience’s attention to information A rather than to B, by providing irrelevant or incomplete information, and by playing emotional games. Since the analysis of manipulative effects of semiotic features used in advertisements is scarce, the present research project investigates the potential manipulative effects of semiotic aspects used in (...) Persian printed advertisements, and the influence of the Iranian sociocultural context on designing these visual messages. A corpus of 160 Persian printed advertisements was analyzed; the results revealed that their semiotic features, especially those which are meaningful based on the sociocultural context of Iran, tend to inculcate relevant information and meaning in consumers, in order to control their minds and subsequently their purchases. The findings of this study include six theme-based categories of semiotic manipulation strategies: Celebrity images, Creative images, Punctuation marks, Natural images, Seasonal images, and Cultural images. The results are discussed along the lines of research methodology in discourse and semiotic analysis. (shrink)

Recently, researchers have shown an increased interest in achievement goal orientation correlates. What is not yet clear is the detailed relationships among students’ goal orientation, students’ personality traits, and parenting style. In so doing, this research responds to the need to analyze the importance of parenting styles and students’ traits in explaining the achievement goal orientations. In the exploratory correlational study, 586 Iranian students along with their parents were selected as the sample so as to evaluate the structure of the (...) relationships between these variables. The results indicate that students’ psychoticism and neuroticism predict students’ goal orientations while extraversion did not. Only the authoritative style predicts mastery approach and psychoticism trait. Permissive and authoritarian styles do not directly or indirectly predict students’ goal orientations. (shrink)

While often presented as promising assistive technologies for motor-impaired users, electroencephalography (EEG)-based Brain-Computer Interfaces (BCIs) remain barely used outside laboratories due to low reliability in real-life conditions. There is thus a need to design long-term reliable BCIs that can be used outside-of-the-lab by end-users, e.g., severely motor-impaired ones. Therefore, we propose and evaluate the design of a multi-class Mental Task (MT)-based BCI for longitudinal training (20 sessions over 3 months) of a tetraplegic user for the CYBATHLON BCI series 2019. In (...) this BCI championship, tetraplegic pilots are mentally driving a virtual car in a racing video game. We aimed at combining a progressive user MT-BCI training with a newly designed machine learning pipeline based on adaptive Riemannian classifiers shown to be promising for real-life applications. We followed a two step training process: the first 11 sessions served to train the user to control a 2-class MT-BCI by performing either two cognitive tasks (REST and MENTAL SUBTRACTION) or two motor-imagery tasks (LEFT-HAND and RIGHT-HAND). The second training step (9 remaining sessions) applied an adaptive, session-independent Riemannian classifier that combined all 4 MT classes used before. Moreover, as our Riemannian classifier was incrementally updated in an unsupervised way it would capture both within and between-session non-stationarity. Experimental evidences confirm the effectiveness of this approach. Namely, the classification accuracy improved by about 30% at the end of the training compared to initial sessions. We also studied the neural correlates of this performance improvement. Using a newly proposed BCI user learning metric, we could show our user learned to improve his BCI control by producing EEG signals matching increasingly more the BCI classifier training data distribution, rather than by improving his EEG class discrimination. However, the resulting improvement was effective only on synchronous (cue-based) BCI and it did not translate into improved CYBATHLON BCI game performances. For the sake of overcoming this in the future, we unveil possible reasons for these limited gaming performances and identify a number of promising future research directions. Importantly, we also report on the evolution of the user's neurophysiological patterns and user experience throughout the BCI training and competition. (shrink)

Background Care is the basis of the nursing profession and nurse’s caring behavior is one of the important factors in patient satisfaction. On the other hand, psychological empowerment can improve the provision of care services, and leaders have a significant impact on the behavior of followers. This study determined the correlation between ethical leadership, psychological empowerment, and caring behavior from nurses’ perspective. Methods This cross-sectional descriptive study was conducted in 2019. A total of 200 nurses were selected by stratified random (...) sampling. Data were collected with ethical leadership, caring behavior and psychological empowerment questionnaires and analyzed with descriptive statistics and inferential statistics using SPSS20. Results The findings showed a significant correlation between ethical leadership, psychological empowerment and caring behavior of nurses. Also, there was a significant correlation between psychological empowerment and nurses’ caring behavior. The regression analysis showed that ethical leadership and psychological empowerment are a predictor of caring behavior of nurses. Conclusion Applying an ethical leadership style by nursing managers can lead to nurses’ improved psychological empowerment and caring behaviors and ultimately, patient care quality. Thus, considering guidelines at the team and organizational levels and programs such as providing workshops and periodic counseling to cultivate ethical nurse leadership can lead to better caring behavior. (shrink)