Resultados de investigación

Background and Objectives: This exploratory study aimed to test the buffering effect of emotional intelligence in the associations between aggression against teachers, perceived stress, and withdrawal intentions. Design and Methods: A sample of 329 secondary school teachers (51.4% female) completed questionnaires assessing aggression against teachers, perceived stress, withdrawal intentions, and emotional intelligence. Results: The results showed that emotional intelligence was negatively related to perceived stress and withdrawal intentions. Across moderated-mediation analysis, there were mixed findings regarding the moderating effects of emotional intelligence in the proposed model. Findings indicated that emotional intelligence moderated only the association between perceived stress and withdrawal intentions. Conclusions: These findings suggest that emotional intelligence is a psychological resource for mitigating the negative effects of perceived stress on negative work attitudes among teaching professionals in the context of harmful student behaviors. Possible avenues for including emotional intelligence in the field of teacher victimization are discussed., -Ayuda predoctoral del Ministerio de Educación, Cultura y Deporte (FPU16/02238) -Universidad de Málaga y Junta de Andalucía (UMA18-FEDERJA-147) -Grupo PAIDI CTS-1048 de la Junta de Andalucía

This study used job demands–resources and emotional intelligence theories to test a moderated mediation model explaining work engagement in two independent teacher samples. We hypothesised that emotional intelligence buffers the effect of emotional demands on work engagement through self-appraised stress. Childhood and primary educators (sample 1, N=351) and secondary educators (sample 2, N=344) participated in the study. Although emotional intelligence did not moderate the relationship between emotional demands and self-ap- praised stress, it did buffer the relationship between self-appraised stress and work engagement in both teacher samples. The findings suggest that emotional intelligence has a specific buffering effect affecting intrapersonal and interpersonal processes. We discuss the implications of these findings for efforts to help teachers deal with the detrimental effects of stress on work engagement., Ayuda predoctoral del Ministerio de Educación, Cultura y Deporte (FPU16/02238) Universidad de Málaga

12 pages. -- Figure S1-S18. -- Table S1. Atomic percentages determined by XPS in the electrodes after OER. -- Table S2. Comparison of the CoFeP-based electrodes for OER in 1 M KOH in chronological order., The development of high current density anodes for the oxygen evolution reaction (OER) is fundamental to manufacturing practical and reliable electrochemical cells. In this work, we have developed a bimetallic electrocatalyst based on cobalt–iron oxyhydroxide that shows outstanding performance for water oxidation. Such a catalyst is obtained from cobalt–iron phosphide nanorods that serve as sacrificial structures for the formation of a bimetallic oxyhydroxide through phosphorous loss concomitantly to oxygen/hydroxide incorporation. CoFeP nanorods are synthesized using a scalable method using triphenyl phosphite as a phosphorous precursor. They are deposited without the use of binders on nickel foam to enable fast electron transport, a highly effective surface area, and a high density of active sites. The morphological and chemical transformation of the CoFeP nanoparticles is analyzed and compared with the monometallic cobalt phosphide in alkaline media and under anodic potentials. The resulting bimetallic electrode presents a Tafel slope as low as 42 mV dec–1 and low overpotentials for OER. For the first time, an anion exchange membrane electrolysis device with an integrated CoFeP-based anode was tested at a high current density of 1 A cm–2, demonstrating excellent stability and Faradaic efficiency near 100%. This work opens up a way for using metal phosphide-based anodes for practical fuel electrosynthesis devices., Peer reviewed

11 pages. -- Experimental Section. Chemicals. -- Synthesis of Hexaaminobenzene (HAB). -- Synthesis of C2N. --Synthesis of PdH0.58@C2N, Pd@C2N, PdH0.58 and PdH0.58/C2N. -- -- Structural characterization. -- Electrochemical Measurements. -- Computational method. -- Figures S1-S8. -- Table S1. Summary of the FOR activity and stability of Pd-based nanoalloys., The lack of electrocatalysts for the formate oxidation reaction (FOR) hampers the deployment of direct formate fuel cells (DFFCs). To overcome this limitation, herein, we detail the production of palladium hydride particles supported on C2N (PdH0.58@C2N) via a facile method. PdH0.58@C2N displays excellent FOR performance, reaching current densities up to 5.6 A·mgPd–1 and stable cycling and chronoamperometric operation. The Pd lattice expands due to the hydrogen intercalation. Besides, an electronic redistribution associated with the distinct electronegativity of Pd and H is observed. Both phenomena modify the electron energy levels, enhancing the activity and stability of the composite catalyst. More specifically, differential functional theory calculations show H intercalation to downshift the Pd d-band center in Pd0.58@C2N, weakening adsorbate binding and accelerating the FOR rate-determining step., Peer reviewed

Chemicals, material characterizations, structural characterization, electrochemical measurements, MEA fabrication and direct ethanol fuel cell performance test, theoretical modeling and calculations; additional TEM, AC-HRTEM, HRTEM, HAADF-STEM images, corresponding FFT spectrum and GPA analysis; XRD pattern; Tafel slope curve; schematic illustration of mechanism for EOR; CO-TPD and CO–DRIFTS spectra; 1H NMR spectra; work functions and electron density differences diagram; and calculation details of Faradaic efficiency, mass activity, price activity, Engineering lattice strain, electronic structure, and crystallinity in palladium alloys offers a promising approach to significantly enhance their electrocatalytic performance. In this work, we present a versatile strategy to synthesize Pd-based phosphide alloys integrated with non-noble metal atoms (Pd-M-P; M = Co, Ni, Cu), characterized by expanded lattice structures and a crystalline–amorphous core–shell architecture. Catalytic performance assessments revealed that CuPdP exhibits an impressive mass activity of 7.96 A mgPd–1 for the ethanol oxidation reaction (EOR), which is 10.6 times higher than that of commercial Pd/C. This performance enhancement can be attributed to the precisely engineered lattice tensile strain and the strong p–d hybridization interaction between P and Pd. Density functional theory calculations further confirmed that these factors facilitate enhanced OH adsorption and weakened CO adsorption, thereby significantly improving EOR performance. This study presents an effective strategy for the atomic-level engineering of palladium alloy nanomaterials to achieve good electrocatalytic performance, providing a method for designing highly active catalysts., Peer reviewed

11 pages. -- Experimental and theoretical methods. -- Results., Peer reviewed

The aim of this study is to explore a model examining how emotional intelligence (EI), gender, depressive symptoms and suicidal thoughts and behaviours (STB) may interact. The sample included 380 Spanish adolescent bully-victims (61.6% boys; mean age = 14.38 years). The results indicated that EI is a significant negative predictor of decreased STB and that this relation is fully mediated by depressive symptoms. This effect was moderated by gender, such that the mediation is stronger for girls compared to boys. The promotion of EI may be core in the development of prevention programmes for suicide, especially among female bully-victims., Parte del proyecto I+D+i PID2020-117006RB-I00, financiado por MCIN/AEI/10.13039/501100011033, Grupo de investigación Applied Positive Lab CTS-1048G-FEDER, Contrato posdoctoral financiado por el Spanish Ministry of Science, Innovation and Universities (FJC2019-038942-I/ AEI/10.13039/501100011033).

Emotional intelligence (EI) is typically linked to higher subjective happiness scores in human service professionals. It is unknown which EI facets are more predictive in explaining subjective happiness beyond that accounted for by other key predictors such as perceived stress. This study investigated which EI facets were the most predictive in explaining subjective happiness above perceived stress in a relatively large sample of Spanish teachers. The sample was composed of 1323 Spanish teaching professionals (821 females and 529 secondary school teachers) from different educational centers located in Southern Spain. A student-recruited sampling technique was used, and the surveys included the Wong and Law Emotional Intelligence Scale, the Subjective Happiness Scale, and the Perceived Stress Scale. Predictive and incremental validity was assessed with SPSS, and hierarchical regression analysis was used to predict subjective happiness from EI facets beyond that accounted for by perceived stress. The results showed that all four EI facets correlated significantly with each other. Also, they all were positively and significantly associated with subjective happiness, whereas perceived stress was negatively associated with happiness scores. Moreover, self-emotion appraisal, use of emotions and regulation of emotions accounted for a significant amount of variance in the prediction of satisfaction with life beyond the effects of sociodemographic variables and perceived stress. This study extends the specific contribution of EI facets in predicting subjective happiness, rather than EI as a unified construct, in a relatively large sample of Spanish teachers. Self-focused dimensions involving appraisal, use and regulation of emotions appeared to be the most important predictors of happiness beyond stress experienced by teachers. Improved knowledge of the link between specific dimensions of EI and global subjective happiness might improve training in a well-being prevention..., Junta de Andalucía (UMA18-FEDERJA-147). Ministerio de Ciencia e Innovación (PID2020-117006RB-I00). Grupo PAIDI CTS-1048 de la Junta de Andalucía. Universidad de Málaga. Ministerio de Ciencia, Innovación y Universidades (FJC2019-038942-I/AEI/10.13039/501100011033)

La inteligencia emocional (IE) y el afrontamiento resiliente (AR) han mostrado influencias positivas en el compromiso ocupacional (CO). Considerando la falta de estudios en esta línea, el presente trabajo examina el rol del AR como mediador y moderador en la relación entre la IE y el CO en una muestra de 338 docentes noveles (58,9% mujeres; Medad= 26,85, DT= 5,66). Los resultados mostraron que el AR mediaba (B= ,20; IC= ,02, ,37), pero no moderaba esta relación (B= -,01; IC= -,31, ,29). Se discuten las implicaciones para el diseño de acciones de promoción de actitudes laborales positivas en la formación inicial docente., -Junta de Andalucía (UMA18-FEDERJA-147) -Ministerio de Ciencia e Innovación (PID2020-117006RB-I00) -Grupo PAIDI CTS-1048 de la Junta de Andalucía -Universidad de Málaga (contratos postdoctorales) -Ministerio de Ciencia, Innovación y Universidades (FJC2019-038942-I/AEI/10.13039/501100011033)

The present study focuses on the interplay of emotion-regulation ability and perceived workplace social support as predictors of job satisfaction and happiness in a Spanish multi-occupational sample. A total of 494 working adults (39.4% females) took part in this study. Emotion-regulation ability and perceived support from colleagues and supervisors were positively associated. In addition, emotion-regulation ability and perceived support from colleagues and supervisors showed positive associations with job satisfaction and happiness. Furthermore, considering results from moderation analyses, when low levels of perceived workplace social support were reported, the relationship between emotion regulation and both job satisfaction and happiness was stronger than in cases of higher perceived workplace support. In line with previous studies, these findings suggest that training in emotion regulation abilities may take into consideration the potential moderating role of job characteristics such as support from colleagues and supervisors. Finally, theoretical and practical implications of the joint study of these factors in line with the Job Demands-Resources model and the Emotional Intelligence framework are discussed., Proyecto I+D+i del Ministerio de Economía y Competitividad (PSI2012-38813) Ayuda predoctoral del Ministerio de Educación, Cultura y Deporte (FPU16/02238) Plan Propio de Investigación de la Universidad de Málaga (PPIT.UMA.B1.2017/23)