Search results for "Affect"
showing 10 items of 1382 documents
Filtering of Spontaneous and Low Intensity Emotions in Educational Contexts
2015
Affect detection is a challenging problem, even more in educational contexts, where emotions are spontaneous and usually subtle. In this paper, we propose a two-stage detection approach based on an initial binary discretization followed by a specific emotion prediction stage. The binary classification method uses several distinct sources of information to detect and filter relevant time slots from an affective point of view. An accuracy close to 75% at detecting whether the learner has felt an educationally relevant emotion on 20 second time slots has been obtained. These slots can then be further analyzed by a second classifier, to determine the specific user emotion.
Effects of acute social stress on the conditioned place preference induced by MDMA in adolescent and adult mice
2014
Exposure to social defeat stress increases the rewarding effects of psychostimulants in animal models, but its effect on 3,4-methylenedioxymethylamphetamine (MDMA) reward has received little attention. In the present study, we evaluated the influence of social defeat on the rewarding effects of MDMA in adolescent [postnatal day (PND) 29-40] and adult (PND 50-61) male mice using the conditioned place preference paradigm. Experimental mice were exposed to social defeat in an agonistic encounter before each session of conditioning with 1.25 or 10 mg/kg of MDMA. The effects of social defeat on corticosterone levels and the motor or the anxiogenic effects of MDMA were also evaluated. Mice expose…
SF3B1 modulators affect key genes in metastasis and drug influx: a new approach to fight pancreatic cancer chemoresistance.
2021
Aim: Because mutations of splicing factor 3B subunit-1 (SF3B1) have been identified in 4% of pancreatic ductal adenocarcinoma (PDAC) patients, we investigated the activity of new potential inhibitors of SF3B1 in combination with gemcitabine, one of the standard drugs, in PDAC cell lines. Methods: One imidazo[2,1-b][1,3,4]thiadiazole derivative (IS1) and three indole derivatives (IS2, IS3 and IS4), selected by virtual screening from an in-house library, were evaluated by the sulforhodamine-B and wound healing assay for their cytotoxic and antimigratory activity in the PDAC cells SUIT-2, Hs766t and Panc05.04, the latter harbouring the SF3B1 mutations. The effects on the splicing pattern of pr…
Psychological aspects in children affected by duchenne de boulogne muscular dystrophy.
2012
Impairment of intelligence in Duchenne muscular dystrophy (DMD) patients was described by Duchenne de Boulogne himself in 1868. Further studies report intelligence disorders with mayor impairment of memory. The aim of the present study was to assess the presence of affective and personality disorders in a group of children affected by DMD. Twenty six male DMD patients, mean age eleven and four months years old, were assessed for their affective and personality disorder. Only eight subjects had a total IQ below average with major difficulties in verbal and visual-spatial memory, comprehension, arithmetic and vocabulary. All the subjects presented some disorders: tendency to marginalization a…
Pronunciation Learning Environment: EFL Students' Cognitions of In-class and Out-of-class Factors Affecting Pronunciation Acquisition
2018
The way a foreign language (L2) learner perceives his or her educational environment may affect their processes of L2 acquisition. The aim of the study presented in this paper is to explore English as a foreign language (EFL) students’ perceptions of their teachers’ pronunciation, in-class and outside-class factors regarding pronunciation acquisition, such as pronunciation activities, recordings, focus on form, peer pronunciation, listening to music, to mention a few. A group of 89 participants responded to a survey, via which the data necessary to respond to the following three research questions was collected. How do EFL learners perceive their teachers’ pronunciation? What is the relatio…
Traits and emotions
2000
This paper reviews literature on traits and emotions focusing on both structure and management, or 'having' and 'doing'. The cognitive perspective of this paper implies that traits and emotions are viewed as provisions to frame people and their behaviours in situations in meaningful ways. The focus on the structure of traits thus implies considering the now broadly acknowledged Big Five model as a dimensional framework by which traits of people can be meaningfully organized. A similar position is taken with respect to emotions, given the recurrent finding of a two-dimensional model of emotions with Positive Affect and Negative Affect (PA and NA). Maintaining relevant distinctions between tr…
Relación entre complejidad y dificultad en tareas con patrones lineales reiterativos en estudiantes de 5 años
2018
Una de las finalidades de la enseñanza de las matemáticas en Educación Infantil es fomentar el pensamiento lógico, la creatividad y la capacidad para resolver problemas de los estudiantes. Entre las actividades escolares propias de estas edades es habitual encontrar tareas de identificación y continuación de patrones lineales de repetición. Esta actividad puede ser estudiada desde un contexto de resolución de problemas en el que el estudiante debe discriminar la información superflua de aquella que le permite obtener la regla de generación de la serie y resolver la tarea. Diferentes variables como la longitud del núcleo de repetición, el número de descriptores, su naturaleza o la aparición …
Acceptance and Continuance Intention of Web-based Learning Technologies (WLT) Use among University Students in a Baltic Country
2006
This paper presents the acceptance and "continuance intention" of use for Web-based learning tools among University students in an Eastern European Country, namely Estonia. In this paper, we used the technology acceptance model (TAM), which was extended to include two external constructs: the technology and user characteristics. These two constructs were modeled to influence the perceived ease of use, and perceived usefulness constructs in the TAM. Further, another construct - continuance intention - in the information systems (IS) post-adoption literature was linked to the TAM. We used a sample of 72 students from four local higher educational institutions that have experience with a speci…
Ethics of aging
2021
Abstract With a steady increase in the number of older people worldwide and a much higher percentage of older people as part of the overall population, we are on the verge of becoming a mass geriatric society. These gains in extra years are not only a prolongation of individual lives but also result in demographic transitions that will challenge economic, social, and geopolitical systems and chiefly our healthcare systems in many countries. Population aging calls for the reassessment of existing policies and programs, in order to ensure a fair distribution of rights, burdens, and responsibilities between generations and to give the opportunity to older people to live fully a phase of life t…
Educational systems efficiency in European Union countries
2011
Abstract We use the PISA 2006 results to analyse students’ proficiency in EU countries with regard to two indexes that represent the home background, viz the educational resources available at home and the family background of students. However, many factors affect proficiency and therefore, using a DEA-bootstrap, we intend to measure the efficiency of the European educational systems as capability to ensure high students’ competencies despite adverse conditions about the educational resources available at home and the family background. Results show an unexpected differentiation among EU countries. In particular, the most developed countries often show disappointing students’ proficiency d…