Validation of the Portuguese version of the Integration of Stressful Life Experiences Scale (ISLES) in a sample of bereaved individuals.

The Integration of Stressful Life Experiences Scale (ISLES) evaluates the ability to integrate stressful experiences into one's meaning system. The present study developed and validated a version of this scale for a bereaved Portuguese-speaking population, utilizing a sample of 242 adults who had lost a significant other to diverse causes of death. The sample was predominantly female, educated, married, or in consensual unions, and actively employed. Confirmatory factor analysis revealed a two-factor structure, consisting of 13 items, showing adequate local and global goodness-of-fit and supporting the proposed original structure. Convergent evidence based on internal structure was found for the two dimensions (Comprehensibility and Footing in the World). Regarding reliability, Cronbach's alpha and McDonald's omega computed for each factor showed good internal consistency and the average inter-item correlation was considered satisfactory. This psychometric support for ISLES underscores its relevance in enhancing the knowledge of meaning-making processes in the Portuguese context.

Is Negative Affect that Bad? The Effect of Affective States on Conventional and Unconventional Creative Thinking in University Students.

Introduction: The role of affective states on the creative process has been receiving the attention of researchers and has led to contradictory results. Most research in creativity has emphasized the role of affective states, mainly positive ones, on creativity levels, namely those resulting from divergent thinking tasks that reveal the unconventional way of thinking in the creative process. However, there are no studies to date that focus on the impact of affective states on conventional and unconventional thinking, during the same creative process, which consider a single creative assessment task. The aim of this experimental study was to analyze the effect of induced affective states on both conventional and unconventional thinking of creativity in adults by using the TCT-DP (Test for Creative Thinking-Drawing Production). Method: Seventy-five university students, mostly female, with a mean age of 26.95 years, were randomly assigned into three affect elicitation conditions (pleasant vs. unpleasant vs. neutral). Results: Results indicated that the negative affective state led to higher levels of conventional thinking when compared to positive and neutral affective states. However, no significant differences were found on unconventional thinking across the three conditions. Conclusions: Our results do not support the assumption that the negative affect has a hindering effect on creativity nor the positive affect increases creativity. Negative affect seems to promote conventional thinking, perhaps due to its cognitive correlates, which can be manifested in focusing attention and analytic thinking. Practical and theoretical implications for future research on the role of affective states on creativity are discussed.

Introducción: El papel de los estados afectivos en el proceso creativo ha sido objeto de atención por parte de los investigadores y ha dado lugar a resultados contradictorios. La mayor parte de la investigación en creatividad ha hecho hincapié en el papel de los estados afectivos, principalmente los positivos, sobre los niveles de creatividad. A saber, los resultantes de las tareas de pensamiento divergente que revelan la forma no convencional de pensar en el proceso creativo. Este estudio tuvo como objetivo analizar el efecto de los estados afectivos inducidos en dos dimensiones distintas del pensamiento creativo en adultos. Método: Setenta y cinco voluntarios, en su mayoría mujeres, con una edad media de 26.95 años, fueron asignados aleatoriamente a tres condiciones de elicitación de estados afectivos (agradable vs desagradable vs neutral), justo antes de realizar una tarea de creatividad figurativa. Resultados: Los resultados indicaron que el estado afectivo negativo condujo a niveles más altos de pensamiento convencional. Conclusiones: Nuestros resultados no apoyan ni la hipótesis de que el afecto negativo tiene un efecto perjudicial sobre la creatividad ni la de que el afecto positivo aumenta la creatividad. El afecto negativo parece promover el pensamiento convencional, quizá debido a sus correlatos cognitivos, que pueden manifestarse en la atención focalizada y el pensamiento analítico. Se discuten las implicaciones prácticas y teóricas para futuras investigaciones sobre el papel de los estados afectivos en la creatividad.

Sintomatologia musculosquelética nos estudantes de enfermagem: o papel dos fatores psicossociais / Musculoskeletal symptoms in nursing students: the role of psychosocial factors / Sintomatología musculoesquelética en estudiantes de enfermería: el papel de los factores psicosociales

Resumo Enquadramento: Durante todo o curso, os estudantes de enfermagem estão expostos a fatores que podem contribuir para uma diminuição da sua qualidade de vida e do seu estado de saúde em geral, quando associados a sintomatologia musculoesquelética. Objetivo: Identificar os fatores psicossociais associados à presença de sintomatologia musculoesquelética no estudante do curso de licenciatura em enfermagem. Metodologia: Estudo transversal, com 253 estudantes de escolas superiores de enfermagem. A recolha de dados foi realizada em março e abril de 2018, através de um questionário autopreenchido incluindo variáveis sociodemográficas, bem como questionários Nórdico Músculo-esquelético (QNM), Questionário Estado de Saúde (SF-36) e a Escalas de Ansiedade Depressão e Stress (EADS-21). Resultados: A ansiedade, stress e depressão foram identificadas como variáveis associadas à presença de sintomatologia musculoesquelética, interferindo na saúde dos estudantes de enfermagem. Conclusão: Existem fatores psicossociais associados à sintomatologia musculosquelética nos estudantes de enfermagem. Conhecer estes fatores de risco irá permitir que se possam planear atempadamente estratégias de prevenção e, também, contribuir para a potenciação do processo de aprendizagem.

Abstract Background: Throughout their education, nursing students are exposed to factors that can decrease their quality of life and general health status when associated with musculoskeletal symptoms. Objective: To identify the psychosocial factors associated with the occurrence of musculoskeletal symptoms in undergraduate nursing students. Methodology: Cross-sectional study with 253 students from university-level nursing schools. Data were collected between March and April 2018 through a self-administered questionnaire including sociodemographic variables and the Portuguese versions of the Nordic Musculoskeletal Questionnaire (NMQ), the 36-Item Short-Form Survey (SF-36), and the Depression, Anxiety, and Stress Scale (EADS-21). Results: Anxiety, stress, and depression were identified as variables associated with the occurrence of musculoskeletal symptoms affecting nursing students' health. Conclusion: There are psychosocial factors associated with musculoskeletal symptoms in nursing students. Understanding these risk factors will allow for the timely planning of prevention strategies and contribute to enhancing the learning process.

Resumen Marco contextual: Durante todo el curso, los estudiantes de enfermería están expuestos a factores que pueden contribuir a la disminución de su calidad de vida y de su estado de salud en general cuando se asocian con la sintomatología musculoesquelética. Objetivo: Identificar los factores psicosociales asociados con la presencia de sintomatología musculoesquelética en el estudiante de enfermería. Metodología: Estudio transversal, con 253 estudiantes de escuelas de enfermería. La recopilación de datos se llevó a cabo en marzo y abril de 2018 mediante un cuestionario autocompletado que incluía variables sociodemográficas, así como los cuestionarios Nórdico Músculo-esquelético (QNM), Cuestionario Estado de Salud (SF-36) y la Escalas de Ansiedad, Depresión y Estrés (EADS-21). Resultados: La ansiedad, el estrés y la depresión se identificaron como variables asociadas a la presencia de sintomatología musculoesquelética, que interfieren en la salud de los estudiantes de enfermería. Conclusión: Hay factores psicosociales asociados con la sintomatología musculoesquelética en los estudiantes de enfermería. Conocer estos factores de riesgo permitirá planificar oportunamente las estrategias de prevención y contribuirá también a mejorar el proceso de aprendizaje.

Ecological specialization and niche overlap of subterranean rodents inferred from DNA metabarcoding diet analysis.

Knowledge of how animal species use food resources available in the environment can increase our understanding of many ecological processes. However, obtaining this information using traditional methods is difficult for species feeding on a large variety of food items in highly diverse environments. We amplified the DNA of plants for 306 scat and 40 soil samples, and applied an environmental DNA metabarcoding approach to investigate food preferences, degree of diet specialization and diet overlap of seven herbivore rodent species of the genus Ctenomys distributed in southern and midwestern Brazil. The metabarcoding approach revealed that these species consume more than 60% of the plant families recovered in soil samples, indicating generalist feeding habits of ctenomyids. The family Poaceae was the most common food resource retrieved in scats of all species as well in soil samples. Niche overlap analysis indicated high overlap in the plant families and molecular operational taxonomic units consumed, mainly among the southern species. Interspecific differences in diet composition were influenced, among other factors, by the availability of resources in the environment. In addition, our results provide support for the hypothesis that the allopatric distributions of ctenomyids allow them to exploit the same range of resources when available, possibly because of the absence of interspecific competition.

Validation of a new tool for evaluating subjects' satisfaction with medicine package leaflets: a cross-sectional descriptive study

ABSTRACT BACKGROUND: Package leaflets of medicines need to be intelligible, but tools for their evaluation are scarce. OBJECTIVE: To validate a new tool for assessing subjects' satisfaction with medicine package leaflets (LiS-RPL). DESIGN AND SETTING: Cross-sectional descriptive study conducted in two regions of Portugal (Lisbon and Centre). METHODS: 503 participants (53.1% male) were selected according to convenience and homogenously distributed into three groups: 1 to 6; 7 to 12; and > 12 years of schooling. LiS-RPL was developed based on international regulation guidelines and was initially composed of 14 items. Twelve package leaflets were tested. Dimensionality calculations included: exploratory factor analysis and minimum rank factor analysis; Kaiser-Meyer-Olkin index and Bartlett's sphericity test to assess matrix adequacy for exploratory factor analysis; exploratory bifactor analysis with Schmid-Leiman solution to detect possible existence of a broad second-order factor; and Bentler's Simplicity Index and Loading Simplicity Index to assess factor simplicity. Diverse coefficients were calculated to assess reliability. RESULTS: Minimum rank factor analysis detected a two-factor or single-factor structure. Exploratory factor analysis with 12 items showed a two-factor structure, explaining 69.11% of the variance. These items were strongly correlated with each other (r = 0.80). Schmid-Leiman: all items seemed to represent the general factor (loadings above 0.50), which was 76.4% of the extracted variance. Simplicity indices were good (percentile 99): Bentler's Simplicity Index of 0.99 and Loading Simplicity Index of 0.48. Internal consistency indexes indicated good reliability. LiS-RPL was shown to be homogenous. CONCLUSION: LiS-RPL is a validated tool for evaluating subjects' satisfaction with medicine package leaflets.

Consistently dated Atlantic sediment cores over the last 40 thousand years.

Rapid changes in ocean circulation and climate have been observed in marine-sediment and ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining the possibility of rapid climate shifts in response to anthropogenic greenhouse gas forcing. To date, these rapid changes in climate and ocean circulation are still not fully explained. One obstacle hindering progress in our understanding of the interactions between past ocean circulation and climate changes is the difficulty of accurately dating marine cores. Here, we present a set of 92 marine sediment cores from the Atlantic Ocean for which we have established age-depth models that are consistent with the Greenland GICC05 ice core chronology, and computed the associated dating uncertainties, using a new deposition modeling technique. This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate changes over vast regions of the Atlantic Ocean. Moreover, this data set is of direct use in paleoclimate modeling studies.

Validation of a new tool for evaluating subjects' satisfaction with medicine package leaflets: a cross-sectional descriptive study.

BACKGROUND: Package leaflets of medicines need to be intelligible, but tools for their evaluation are scarce. OBJECTIVE: To validate a new tool for assessing subjects' satisfaction with medicine package leaflets (LiS-RPL). DESIGN AND SETTING: Cross-sectional descriptive study conducted in two regions of Portugal (Lisbon and Centre). METHODS: 503 participants (53.1% male) were selected according to convenience and homogenously distributed into three groups: 1 to 6; 7 to 12; and > 12 years of schooling. LiS-RPL was developed based on international regulation guidelines and was initially composed of 14 items. Twelve package leaflets were tested. Dimensionality calculations included: exploratory factor analysis and minimum rank factor analysis; Kaiser-Meyer-Olkin index and Bartlett's sphericity test to assess matrix adequacy for exploratory factor analysis; exploratory bifactor analysis with Schmid-Leiman solution to detect possible existence of a broad second-order factor; and Bentler's Simplicity Index and Loading Simplicity Index to assess factor simplicity. Diverse coefficients were calculated to assess reliability. RESULTS: Minimum rank factor analysis detected a two-factor or single-factor structure. Exploratory factor analysis with 12 items showed a two-factor structure, explaining 69.11% of the variance. These items were strongly correlated with each other (r = 0.80). Schmid-Leiman: all items seemed to represent the general factor (loadings above 0.50), which was 76.4% of the extracted variance. Simplicity indices were good (percentile 99): Bentler's Simplicity Index of 0.99 and Loading Simplicity Index of 0.48. Internal consistency indexes indicated good reliability. LiS-RPL was shown to be homogenous. CONCLUSION: LiS-RPL is a validated tool for evaluating subjects' satisfaction with medicine package leaflets.

Abrupt ice-age shifts in southern westerly winds and Antarctic climate forced from the north.

The mid-latitude westerly winds of the Southern Hemisphere play a central role in the global climate system via Southern Ocean upwelling1, carbon exchange with the deep ocean2, Agulhas leakage (transport of Indian Ocean waters into the Atlantic)3 and possibly Antarctic ice-sheet stability4. Meridional shifts of the Southern Hemisphere westerly winds have been hypothesized to occur5,6 in parallel with the well-documented shifts of the intertropical convergence zone7 in response to Dansgaard-Oeschger (DO) events- abrupt North Atlantic climate change events of the last ice age. Shifting moisture pathways to West Antarctica8 are consistent with this view but may represent a Pacific teleconnection pattern forced from the tropics9. The full response of the Southern Hemisphere atmospheric circulation to the DO cycle and its impact on Antarctic temperature remain unclear10. Here we use five ice cores synchronized via volcanic markers to show that the Antarctic temperature response to the DO cycle can be understood as the superposition of two modes: a spatially homogeneous oceanic 'bipolar seesaw' mode that lags behind Northern Hemisphere climate by about 200 years, and a spatially heterogeneous atmospheric mode that is synchronous with abrupt events in the Northern Hemisphere. Temperature anomalies of the atmospheric mode are similar to those associated with present-day Southern Annular Mode variability, rather than the Pacific-South American pattern. Moreover, deuterium-excess records suggest a zonally coherent migration of the Southern Hemisphere westerly winds over all ocean basins in phase with Northern Hemisphere climate. Our work provides a simple conceptual framework for understanding circum-Antarctic temperature variations forced by abrupt Northern Hemisphere climate change. We provide observational evidence of abrupt shifts in the Southern Hemisphere westerly winds, which have previously documented1-3 ramifications for global ocean circulation and atmospheric carbon dioxide. These coupled changes highlight the necessity of a global, rather than a purely North Atlantic, perspective on the DO cycle.

Affective and Physicological correlates of the perception of unimodal and bimodal emotional stimuli / Correlatos afectivos y fisiológicos de la percepción de estímulos emocionales unimodales y bimodales

Background: Despite the multisensory nature of perception, previous research on emotions has been focused on unimodal emotional cues with visual stimuli. To the best of our knowledge, there is no evidence on the extent to which incongruent emotional cues from visual and auditory sensory channels affect pupil size. Aims: To investigate the effects of audiovisual emotional information perception on the physiological and affective response, but also to determine the impact of mismatched cues in emotional perception on these physiological indexes. Method: Pupil size, electrodermal activity and affective subjective responses were recorded while 30 participants were exposed to visual and auditory stimuli with varied emotional content in three different experimental conditions: pictures and sounds presented alone (unimodal), emotionally matched audio-visual stimuli (bimodal congruent) and emotionally mismatched audio-visual stimuli (bimodal incongruent). Results: The data revealed no effect of emotional incongruence on physiological and affective responses. On the other hand, pupil size covaried with skin conductance response (SCR), but the subjective experience was partially dissociated from autonomic responses. Conclusion: Emotional stimuli are able to trigger physiological responses regardless of valence, sensory modality or level of emotional congruence (AU)

Antecedentes: a pesar de la naturaleza multisensorial de la percepción, la investigación que se ha hecho hasta el momento sobre las emociones se ha centrado en las señales emocionales típicamente unimodales. Según nuestro conocimiento, no existen estudios previos sobre cómo las señales emocionales incongruentes pueden afectar el tamaño de la pupila. Objetivos: investigar los efectos de la percepción de la información emocional audiovisual incongruente sobre las respuestas de tipo fisiológico y afectivo. Método: el tamaño pupilar, la actividad electrodérmica y las respuestas subjetivas afectivas de 30 participantes fueron registradas mientras ellos veían y escuchaban estímulos con contenido emocional que fueron expuestos en tres condiciones experimentales diferentes: imágenes y sonidos presentados aisladamente (unimodal); estímulos audiovisuales emocionalmente coincidentes (congruente bimodal); y estímulos audiovisuales emocionalmente no coincidentes (incongruente bimodal). Resultados: el estudio no reveló un efecto de la incongruencia emocional sobre las respuestas fisiológicas y afectivas. De otra parte, se encontró que el tamaño pupilar presenta una covariación con la actividad dérmica. Sin embargo, la experiencia subjetiva se mostró parcialmente disociada de las respuestas autónomas. Conclusión: los estímulos emocionales tienen la capacidad de desencadenar reacciones fisiológicas, independientemente de la valencia, modalidad sensorial o nivel de congruencia (AU)