Psychometric properties of the Brazilian version of the Big Five Inventory.

INTRODUCTION: There is growing interest in the fields of psychiatry and psychology in investigating the relationship between personality and psychopathology. The Big-5 is a model developed to investigate five personality dimensions: Extroversion, Agreeableness, Conscientiousness, Neuroticism, and Openness. In the present study, we describe the process of translation into Brazilian Portuguese and adaptation of a free tool to evaluate the Big-5 model: The Big-5 Inventory (BFI). The instrument has 44 items with a Likert response scale ranging from 1 to 5. OBJECTIVES: To translate and adapt the BFI into Brazilian Portuguese. METHODS: The adaptation was conducted in the following steps: 1) Translation, 2) Evaluation Committee, 3) Back-translation, 4) Pilot study, 5) Evaluation Committee, and 6) Application. The sample comprised 490 participants from various regions of Brazil. The participants' ages ranged from 18 to 71 years, most of them had completed high school (62.9%), and the majority were women (75%). RESULTS: A model with the following fit indexes was found: χ2/df: 1.954; goodness fit index (GFI): 0.924; comparative fit index (CFI): 0.920; and root mean square error of approximation (RMSEA): 0.044. CONCLUSION: The results are suggestive that the Brazilian version of this instrument has good psychometric properties and represent a cost-free option for investigating associations with the Big-5 in psychiatry.

Prediction of SARS-CoV-2 hosts among Brazilian mammals and new coronavirus transmission chain using evolutionary bioinformatics.

Severe acute respiratory syndrome coronavirus (SARS-CoV) and SARS-CoV-2 are thought to transmit to humans via wild mammals, especially bats. However, evidence for direct bat-to-human transmission is lacking. Involvement of intermediate hosts is considered a reason for SARS-CoV-2 transmission to humans and emergence of outbreak. Large biodiversity is found in tropical territories, such as Brazil. On the similar line, this study aimed to predict potential coronavirus hosts among Brazilian wild mammals based on angiotensin-converting enzyme 2 (ACE2) sequences using evolutionary bioinformatics. Cougar, maned wolf, and bush dogs were predicted as potential hosts for coronavirus. These indigenous carnivores are philogenetically closer to the known SARS-CoV/SARS-CoV-2 hosts and presented low ACE2 divergence. A new coronavirus transmission chain was developed in which white-tailed deer, a susceptible SARS-CoV-2 host, have the central position. Cougar play an important role because of its low divergent ACE2 level in deer and humans. The discovery of these potential coronavirus hosts will be useful for epidemiological surveillance and discovery of interventions that can contribute to break the transmission chain. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s44149-021-00020-w.

Psychometric properties of the Brazilian version of the Big Five Inventory

Abstract Introduction There is growing interest in the fields of psychiatry and psychology in investigating the relationship between personality and psychopathology. The Big-5 is a model developed to investigate five personality dimensions: Extroversion, Agreeableness, Conscientiousness, Neuroticism, and Openness. In the present study, we describe the process of translation into Brazilian Portuguese and adaptation of a free tool to evaluate the Big-5 model: The Big-5 Inventory (BFI). The instrument has 44 items with a Likert response scale ranging from 1 to 5. Objectives To translate and adapt the BFI into Brazilian Portuguese. Methods The adaptation was conducted in the following steps: 1) Translation, 2) Evaluation Committee, 3) Back-translation, 4) Pilot study, 5) Evaluation Committee, and 6) Application. The sample comprised 490 participants from various regions of Brazil. The participants' ages ranged from 18 to 71 years, most of them had completed high school (62.9%), and the majority were women (75%). Results A model with the following fit indexes was found: χ2/df: 1.954; goodness fit index (GFI): 0.924; comparative fit index (CFI): 0.920; and root mean square error of approximation (RMSEA): 0.044. Conclusion The results are suggestive that the Brazilian version of this instrument has good psychometric properties and represent a cost-free option for investigating associations with the Big-5 in psychiatry.

Trauma toracolombar / Thoracolumbar injury

Os autores apresentam uma revisäo sobre os traumatismos de coluna toracolombar, abordando os aspectos de classificaçäo e estabilidade e discutindo os conceitos e opçöes de tratamento

Síndrome de Goldenhar (displasia óculo-aurículo-vertebral) / Goldenhar's syndrome (oculo-auriculo-vertebral dysplasia)

Apresentam-se dois pacientes portadores desta síndrome e discutem-se sua etiologia, quadro clínico e radiológico. As anomalias cardíacas se corrigiram durante a evoluçäo, porém as alteraçöes de coluna se acentuaram. As alteraçöes desta síndrome ocorrem entre a terceira e quarta semana de vida intra-uterina

Doença de Legg-Calvé-Perthes: V. Estudo da dissociaçäo radiográfico-artrográfica em 105 quadris / Legg-Calvé-Perthes disease: V. Study of radiographico-arthrographic dissociation of 105 hips

Os autores apresentam um estudo da dissociaçäo radiográfico-artrográfica em um grupo de 87 pacientes (105 quadris) portadores da doença de Legg-Calvé-Perthes (DLCP). Foi encontrada uma dissociaçäo estatisticamente significante entre os achados radiográficos e artrográficos dos quadris estudados. O estudo radiográfico mostrou que apenas 23 (31,9%) dos 105 quadris se apresentavam em risco radiográfico, enquanto que na artrografia 82 (78,09%) dos 105 quadris se mostravam em risco artrográfico. Com relaçäo ao estudo dessa dissociaçäo segundo as fases da doença, esta foi maior na fase de necrose, em que 29 (70,73%)dos 41 quadris se apresentavam dissociados. Somente 20% dos cinco quadris em fase de reossificaçäo encontravam-se dissociados. Esses resultados ressaltam a importância fundamental do estudo artrográfico na DLCP, já que nos permite estudar as alteraçöes cartilagíneas da cabeça femoral e do acetábulo e a congruência entre os dois