DeustoTeka
DeustoTeka recoge la producción científica del personal docente e investigador de la Universidad de Deusto. Su propósito es reunir, archivar, preservar y aumentar la visibilidad en acceso abierto de los resultados de investigación.
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A debiasing intervention to reduce the causality bias in undergraduates: the role of a bias induction phase
(Springer, 2023-01-14) Martínez Pereña, Naroa; Rodríguez Ferreiro, Javier; Barberia Fernández, Itxaso
; Matute, Helena
The causality bias, or causal illusion, occurs when people believe that there is a causal relationship between events that are actually uncorrelated. This bias is associated with many problems in everyday life, including pseudoscience, stereotypes, prejudices, and ideological extremism. Some evidence-based educational interventions have been developed to reduce causal illusions. To the best of our knowledge, these interventions have included a bias induction phase prior to the training phase, but the role of this bias induction phase has not yet been investigated. The aim of the present research was to examine it. Participants were randomly assigned to one of three groups (induction + training, training, and control, as a function of the phases they received before assessment). We evaluated their causal illusion using a standard contingency judgment task. In a null contingency scenario, the causal illusion was reduced in the training and induction-training groups as compared to the control group, suggesting that the intervention was effective regardless of whether or not the induction phase was included. In addition, in a positive contingency scenario, the induction + training group generated lower causal judgments than the control group, indicating that sometimes the induction phase may produce an increase in general skepticism. The raw data of this experiment are available at the Open Science Framework at https://osf.io/k9nes/.
Validation of a ride comfort simulation strategy on an electric Stewart Platform for real road driving applications
(SAGE Publications Inc., 2023-03) Santos Arconada, Verónica; García Barruetabeña, Jon; Haas, Rainer
In this paper, the validation of the comfort simulation strategy on an electric Stewart Platform under road driving scenarios is explained. First, an introduction to the vibroacoustic comfort theory in passenger cars is presented. Second, the Stewart Platform used for the validation process is explained. Third, the methodology conducted for the validation of a hexapod for ride comfort applications is detailed. Finally, the Stewart Platform has been validated under real world road driving scenarios for the 6 degrees-of-freedom by means of the Vibration Dose Value. The final goal of the validation strategy of the electric Stewart Platform is to perform ride and comfort studies in a driving simulator for the 1–10 Hz frequency range.
Microstructural and mechanical analysis of seamless pipes made of superaustenitic stainless steel using cross-roll piercing and elongation
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-10-14) Murillo Marrodán, Alberto; Gamin, Yury; Kaputkina, Liudmila; García Gil, Eduardo; Aleshchenko, Alexander; Derazkola, Hamed Aghajani
; Pashkov, Alexey; Belokon, Evgeniy
The cross-roll piercing and elongation (CPE) is a forming process performed at high temperatures and high strain rates. The final product quality is strongly dependent on its microstructure. In this study, a finite element method (FEM) model was developed to better understand plastic deformation effects on microstructure during CPE and to analyze alternative thermo-mechanical processing routes. Specific models were used to simulate dynamic and meta-dynamic recrystallization (DRX and MDRX) for the processing of superaustenitic stainless steel (SASS). In addition, the CPE of SASS was investigated experimentally. The microstructure, mechanical properties, and chemical changes of the final product were assessed using optical microscopy, hardness testing, X-ray diffraction, and SEM-EDS. The results revealed higher temperatures and strain rates in the exterior area of the shell after piercing, and MDRX occurred in the whole thickness. However, an average grain size reduction of 13.9% occurred only in the shell middle and inner diameters. During elongation, the highest values of the strain rate and DRX were observed in the inner region, exhibiting a grain size reduction of 38%. Spread in terms of grain size and grain shape anisotropy was found to be less accentuated for tube samples as compared to the pierced shells.
A classless analysis of Italian nouns and their theme-vowel alternations
(Centre National de la Recherche Scientifique, Centre de recherche sur la langue et les textes basques (IKER), 2023-02-05) Lampitelli, Nicola ; Ulfsbjorninn, Shanti
The decompositional, non-lexicalist, approach to word-structure and the theory of roots have proven highly rewarding. One grey area, however, comes from Romance since, rather than roots, the word structure primitive appears to be the stem: root + ‘stem-formative/theme vowel’. Regardless, there have been perspicacious decompositional accounts of Italian, however these are still marred by the large number of morphological/item-specific irregularities, motivating arbitrary noun classes. Additionally, there are roots that do not inflect: consonant-final and vowel-final forms when these are oxytonic or loanwords. Given these irregularities, previous analyses in Italian have included the use of lexical exceptions and class features. We challenge the use of class features in generating the attested patterns (and their exceptions). Instead, we propose a new categorisation of root-shapes, which, when combined with the exponents of nominal inflection, produce the correct surface pairings, as well as the non-alternating forms. In our analysis, there is no diacritic or special marking of lexical exceptions, all forms inflect regularly in accordance to their phonological shape. This requires the innovation of one new mechanism (Inhibition), but we back it up by showing that it leads to an unexpected beneficial prediction that solves a long-standing problem associated with Raddoppiamento Sintattico (RS).
Problematic gambling behavior in a sample with substance use disorder: the role of attachment style and alexithymia
(Springer, 2023-06) Rueda Ruiz, Begoña; Aguirre Larracoechea, Urko; Herrero Lázaro, Marta; Estévez Gutiérrez, Ana
Gambling disorder is a high comorbid disorder in substance abusers which conjunct appearance is related to worse symptomatology and evolution. Nevertheless, the research on the risk factors that may explain this comorbidity is scarce. We build of the self-regulation theory of attachment and addiction to examine if insecure attachment is related to gambling comorbidity in substance abuse disorder and the mediating role of alexithymia in this process. A cross-sectional study was carried out with 369 clinical patients with substance use disorder of which 69 presented comorbid gambling disorder diagnosed with the DSM-5 criteria. Results showed that insecure attachment was more prevalent in the group with comorbid gambling. In this group, the alexithymia levels were also higher and mediated the relationship in between attachment and gambling disorder comorbidity even controlling for several sociodemographic variables. This research indicates that insecure attachment enhances the risk of gambling comorbidity on substance abusers due to the detrimental effect on the self-regulation of emotion. Thus, interventions directed to increase the identification, expression and awareness of emotions might help to reduce comorbidity of gambling of substance use disorders.