University Student Depression Inventory, Brazilian Version, Construct Assessment.

OBJECTIVES: to assess the University Student Depression Inventory, Brazilian version (USDI-BR), construct. METHODS: a methodological study carried out with a snowball probabilistic sample, consisting of 334 undergraduate and graduate students. Confirmatory factor analysis, reliability using McDonald's omega coefficient and Cronbach's alpha were performed. Principal component analysis was performed using the varimax rotation and oblimin rotation, using the Kaiser-Meyer-Olkin criteria, Bartlett's test of sphericity and scree plot. RESULTS: the USDI-BR presented an internal consistency of items of ω = 0.95 and remained with 30 items, with the addition of 1 factor (Death wish and social withdrawal), totaling 4 factors. CONCLUSIONS: the USDI-BR has evidence that points to its validity and also its internal consistency, deserving that new studies be carried out to expand the evidence of its psychometric properties.

Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification.

Caesalpinioideae is the second largest subfamily of legumes (Leguminosae) with ca. 4680 species and 163 genera. It is an ecologically and economically important group formed of mostly woody perennials that range from large canopy emergent trees to functionally herbaceous geoxyles, lianas and shrubs, and which has a global distribution, occurring on every continent except Antarctica. Following the recent re-circumscription of 15 Caesalpinioideae genera as presented in Advances in Legume Systematics 14, Part 1, and using as a basis a phylogenomic analysis of 997 nuclear gene sequences for 420 species and all but five of the genera currently recognised in the subfamily, we present a new higher-level classification for the subfamily. The new classification of Caesalpinioideae comprises eleven tribes, all of which are either new, reinstated or re-circumscribed at this rank: Caesalpinieae Rchb. (27 genera / ca. 223 species), Campsiandreae LPWG (2 / 5-22), Cassieae Bronn (7 / 695), Ceratonieae Rchb. (4 / 6), Dimorphandreae Benth. (4 / 35), Erythrophleeae LPWG (2 /13), Gleditsieae Nakai (3 / 20), Mimoseae Bronn (100 / ca. 3510), Pterogyneae LPWG (1 / 1), Schizolobieae Nakai (8 / 42-43), Sclerolobieae Benth. & Hook. f. (5 / ca. 113). Although many of these lineages have been recognised and named in the past, either as tribes or informal generic groups, their circumscriptions have varied widely and changed over the past decades, such that all the tribes described here differ in generic membership from those previously recognised. Importantly, the approximately 3500 species and 100 genera of the former subfamily Mimosoideae are now placed in the reinstated, but newly circumscribed, tribe Mimoseae. Because of the large size and ecological importance of the tribe, we also provide a clade-based classification system for Mimoseae that includes 17 named lower-level clades. Fourteen of the 100 Mimoseae genera remain unplaced in these lower-level clades: eight are resolved in two grades and six are phylogenetically isolated monogeneric lineages. In addition to the new classification, we provide a key to genera, morphological descriptions and notes for all 163 genera, all tribes, and all named clades. The diversity of growth forms, foliage, flowers and fruits are illustrated for all genera, and for each genus we also provide a distribution map, based on quality-controlled herbarium specimen localities. A glossary for specialised terms used in legume morphology is provided. This new phylogenetically based classification of Caesalpinioideae provides a solid system for communication and a framework for downstream analyses of biogeography, trait evolution and diversification, as well as for taxonomic revision of still understudied genera.

Antimicrobial metabolites produced by endophytic fungi associated with the leaves of Vochysia divergens.

Investigation of the endophytic fungi Nigrospora sphaerica, Nigrospora oryzae, and Pseudofusicoccum stromaticum MeOH fractions isolated from the leaves of Vochysia divergens, a medicinal species from the Brazilian Pantanal, led to the identification of five compounds, namely a new compound (1E,8Z)-10,11-dihydroxy-5,5,8-trimethyl-4-oxocycloundeca-1,8-diene-1-carbaldehyde (1) and four known compounds: 5-methylmellein (2), sclerone (3), daldinone A (4), and lasiodiplodin (5). All compounds were identified using spectroscopic methods, and 1 was corroborated with mass spectrometry, while the known compounds were compared with data in the literature. The relative configuration of compound 1 was determined based on theoretical conformational studies as well as the J experimental values between the hydroxymethyne hydrogens. The antimicrobial activity of the compounds was evaluated. Promising results were obtained for compounds 2, 4, and 5 since they inhibited the bacterium Pseudomonas aeruginosa, an opportunistic pathogen, suggesting the potential of these microorganisms as a source of new antibacterial agents.

University Student Depression Inventory, Brazilian Version, Construct Assessment / Evaluación del Constructo del University Student Depression Inventory, Versión Brasileña / Avaliação do Construto do University Student Depression Inventory, Versão Brasileira

ABSTRACT Objectives: to assess the University Student Depression Inventory, Brazilian version (USDI-BR), construct. Methods: a methodological study carried out with a snowball probabilistic sample, consisting of 334 undergraduate and graduate students. Confirmatory factor analysis, reliability using McDonald's omega coefficient and Cronbach's alpha were performed. Principal component analysis was performed using the varimax rotation and oblimin rotation, using the Kaiser-Meyer-Olkin criteria, Bartlett's test of sphericity and scree plot. Results: the USDI-BR presented an internal consistency of items of ω = 0.95 and remained with 30 items, with the addition of 1 factor (Death wish and social withdrawal), totaling 4 factors. Conclusions: the USDI-BR has evidence that points to its validity and also its internal consistency, deserving that new studies be carried out to expand the evidence of its psychometric properties.

RESUMEN Objetivos: evaluar el constructo del University Student Depression Inventory, versión brasileña (USDI-BR). Métodos: estudio metodológico, realizado con una muestra probabilística en bola de nieve compuesta por 334 estudiantes de pregrado y posgrado. Se realizaron análisis factoriales confirmatorios, confiabilidad mediante el coeficiente omega de McDonald y alfa de Cronbach. El análisis de componentes principales se realizó mediante rotación ortogonal varimax y rotación oblicua oblimin, utilizando los criterios de Kaiser-Meyer-Olkin, la prueba de esfericidad de Bartlett y scree plot. Resultados: el USDI-BR presentó una consistencia interna de ítems de ω = 0,95 y quedó con 30 ítems, con la adición de 1 factor (Deseo de muerte y alejamiento social), totalizando 4 factores. Conclusiones: el USDI-BR tiene evidencias que apuntan a su validez y también a su consistencia interna, ameritando que se realicen nuevos estudios para ampliar la evidencia de sus propiedades psicométricas.

RESUMO Objetivos: avaliar o construto do University Student Depression Inventory, versão brasileira (USDI-BR). Métodos: estudo metodológico, realizado com uma amostra probabilística bola de neve constituída de 334 estudantes de graduação e pós-graduação. Foram realizadas a análise fatorial confirmatória, a confiabilidade pelo coeficiente de ômega de McDonald e o alfa de Cronbach. A análise por componentes principais foi realizada utilizando a rotação ortogonal varimax e a rotação oblíqua oblimin, por meio dos critérios de Kaiser-Meyer-Olkin, teste de esfericidade de Bartlett e scree plot. Resultados: o USDI-BR apresentou consistência interna dos itens de ω = 0,95 e permaneceu com 30 itens, com acréscimo de 1 fator (Desejo de morrer e retraimento social), totalizando 4 fatores. Conclusões: o USDI-BR possui evidências que remetem à sua validade e também à sua consistência interna, merecendo que novos estudos sejam realizados visando ampliar as evidências de suas propriedades psicométricas.

Examining the haemodynamic repercussions of ventilator hyperinflation in elderly patients: An explanatory study.

This study assessed the cardiovascular repercussions of two VHI (ventilation hyperinflation) protocols using the volume-controlled mode, one with an inspiratory pause (VHI-P) and the other without an inspiratory pause (VHI-NP), in mechanically ventilated elderly patients. The patients underwent both VHI protocols in a randomized order, and impedance cardiography was used to record cardiovascular variables. During VHI-P, the diastolic blood pressure was lower than during VHI-NP (Δ = 10%; p = 0.009). VHI-NP and VHI-P demonstrated a decrease in cardiac output (CO) during the first and third sets compared to baseline (p < 0.05; ES=0.23 and 0.29, respectively). Arterial oxygen delivery decreased simultaneously with CO compared to baseline values (p < 0.05; ES=0.22 and 0.23, respectively). Five minutes after the intervention, the systolic time ratio values were lower for VHI-P than VHI-NP (Δ = 10%; p = 0.01). Left ventricular ejection time values were consistently lower in VHI-NP compared to VHI-P (Δ = 2%; p = 0.02). In conclusion, our study shows that VHI in volume-controlled mode induces hemodynamic changes in mechanically ventilated elderly patients, albeit with a small effect size and within the normal range.

"Educational Material on HIV": validity of health educational technology for people living with HIV.

OBJECTIVES: to validate the educational technology "Educational Material on HIV" (INPI - BR 10 2020 003765 0). METHODS: a methodological study with 39 expert judges in HIV/AIDS, using a 5-point Likert scale for assessment. Data were tabulated, processed and analyzed through descriptive analysis. Cronbach's alpha and McDonald's omega tests were performed to analyze internal consistency, and the Intraclass Correlation Coefficient, for reliability. Agreement was established by a Level Content Validity Index greater than 0.90. RESULTS: the assessment instrument showed high internal consistency (Cronbach's alpha of 0.89; McDonald's omega of 0.91) with reliable values. Based on the Intraclass Correlation Coefficient, judges' answers showed acceptable reliability, mean score 0.89 (p<0.001). Agreement among judges was greater than 0.90 in the three assessed dimensions (objectives, presentation and relevance). CONCLUSIONS: the technology was considered a qualified and adequate tool by the judges regarding its objectives, presentation and relevance.

Wild Rosa Endophyte M7SB41-Mediated Host Plant's Powdery Mildew Resistance.

Our previous studies indicated that endophyte M7SB41 (Seimatosporium sp.) can significantly enhance host plants powdery mildew (PM) resistance. To recover the mechanisms, differentially expressed genes (DEGs) were compared between E+ (endophte-inoculated) and E- (endophyte-free) plants by transcriptomics. A total of 4094, 1200 and 2319 DEGs between E+ and E- were identified at 0, 24, and 72 h after plants had been infected with PM pathogen Golovinomyces cichoracearum, respectively. Gene expression pattern analysis displayed a considerable difference and temporality in response to PM stress between the two groups. Transcriptional profiling analysis revealed that M7SB41 induced plant resistance to PM through Ca2+ signaling, salicylic acid (SA) signaling, and the phenylpropanoid biosynthesis pathway. In particular, we investigated the role and the timing of the SA and jasmonic acid (JA)-regulated defensive pathways. Both transcriptomes and pot experiments showed that SA-signaling may play a prominent role in PM resistance conferred by M7SB41. Additionally, the colonization of M7SB41 could effectively increase the activities and the expression of defense-related enzymes under PM pathogen stress. Meanwhile, our study revealed reliable candidate genes from TGA (TGACG motif-binding factor), WRKY, and pathogenesis-related genes related to M7SB41-mediate resistance. These findings offer a novel insight into the mechanisms of endophytes in activating plant defense responses.

Enhanced mercury phytoremediation by Pseudomonodictys pantanalensis sp. nov. A73 and Westerdykella aquatica P71.

Mercury is a non-essential and toxic metal that induces toxicity in most organisms, but endophytic fungi can develop survival strategies to tolerate and respond to metal contaminants and other environmental stressors. The present study demonstrated the potential of mercury-resistant endophytic fungi in phytoremediation. We examined the functional traits involved in plant growth promotion, phytotoxicity mitigation, and mercury phytoremediation in seven fungi strains. The endophytic isolates synthesized the phytohormone indole-3-acetic acid, secreted siderophores, and solubilized phosphate in vitro. Inoculation of maize (Zea mays) plants with endophytes increased plant growth attributes by up to 76.25%. The endophytic fungi stimulated mercury uptake from the substrate and promoted its accumulation in plant tissues (t test, p < 0.05), preferentially in the roots, which thereby mitigated the impacts of metal phytotoxicity. Westerdykella aquatica P71 and the newly identified species Pseudomonodictys pantanalensis nov. A73 were the isolates that presented the best phytoremediation potential. Assembling and annotation of P. pantanalensis A73 and W. aquatica P71 genomes resulted in genome sizes of 45.7 and 31.8 Mb that encoded 17,774 and 11,240 protein-coding genes, respectively. Some clusters of genes detected were involved in the synthesis of secondary metabolites such as dimethylcoprogen (NRPS) and melanin (T1PKS), which are metal chelators with antioxidant activity; mercury resistance (merA and merR1); oxidative stress (PRX1 and TRX1); and plant growth promotion (trpS and iscU). Therefore, both fungi species are potential tools for the bioremediation of mercury-contaminated soils due to their ability to reduce phytotoxicity and assist phytoremediation.

Characterization of Peptaibols Produced by a Marine Strain of the Fungus Trichoderma endophyticum via Mass Spectrometry, Genome Mining and Phylogeny-Based Prediction.

Trichoderma is recognized as a prolific producer of nonribosomal peptides (NRPs) known as peptaibols, which have remarkable biological properties, such as antimicrobial and anticancer activities, as well as the ability to promote systemic resistance in plants against pathogens. In this study, the sequencing of 11-, 14- and 15-res peptaibols produced by a marine strain of Trichoderma isolated from the ascidian Botrylloides giganteus was performed via liquid chromatography coupled to high-resolution tandem mass spectrometry (LC-MS/MS). Identification, based on multilocus phylogeny, revealed that our isolate belongs to the species T. endophyticum, which has never been reported in marine environments. Through genome sequencing and genome mining, 53 biosynthetic gene clusters (BGCs) were identified as being related to bioactive natural products, including two NRP-synthetases: one responsible for the biosynthesis of 11- and 14-res peptaibols, and another for the biosynthesis of 15-res. Substrate prediction, based on phylogeny of the adenylation domains in combination with molecular networking, permitted extensive annotation of the mass spectra related to two new series of 15-res peptaibols, which are referred to herein as "endophytins". The analyses of synteny revealed that the origin of the 15-module peptaibol synthetase is related to 18, 19 and 20-module peptaibol synthetases, and suggests that the loss of modules may be a mechanism used by Trichoderma species for peptaibol diversification. This study demonstrates the importance of combining genome mining techniques, mass spectrometry analysis and molecular networks for the discovery of new natural products.

Differences in Clinical Tests for Assessing Lateral Epicondylitis Elbow in Adults Concerning Their Physical Activity Level: Test Reliability, Accuracy of Ultrasound Imaging, and Relationship with Energy Expenditure.

BACKGROUND: Physical activity (PA) can generate physical stress on the musculoskeletal system. Thus, the aim of the current study was to assess the influence of the level of physical activity on clinical tests used in the diagnosis of lateral epicondylitis in adults, intertest reliability and accuracy based on ultrasound imaging, and relationship with energy expenditure. METHODS: 102 adults with lateral epicondylitis were assessed via an International Physical Activity Questionnaire and divided according to PA level: low (n = 19) moderate (n = 42) or high (n = 41). Pain (visual analog scale), Cozen's and Mill's clinical tests and ultrasound exams were performed. RESULTS: The Cozen's and Mill's tests differed among PA levels. Excellent reliability was found for Mill's test for PA levels and the ultrasound exam (low ICC = 1.0, moderate ICC = 0.82 and high ICC = 0.99). Good reliability was found for Cozen's test (low ICC = 0.80, moderate ICC = 0.74 and high ICC = 0.73), but with significant differences between the ultrasound exams. The Cozen's and Mill's clinical tests had no relationship to the level of energy expenditure for PA levels. CONCLUSION: Mill's test was reliable and accurate for the PA levels. Intertest reliability was poor for the PA levels. Mill's test proved to be accurate based on the ultrasound exam. The pain caused by the tests was not related to the level of energy expenditure.

"Educational Material on HIV": validity of health educational technology for people living with HIV / "Material Educativo sobre VIH": validación de tecnología educativa en salud para personas que viven con VIH / "Material Educativo sobre HIV": validação de tecnologia educacional em saúde para pessoas vivendo com HIV

ABSTRACT Objectives: to validate the educational technology "Educational Material on HIV" (INPI - BR 10 2020 003765 0). Methods: a methodological study with 39 expert judges in HIV/AIDS, using a 5-point Likert scale for assessment. Data were tabulated, processed and analyzed through descriptive analysis. Cronbach's alpha and McDonald's omega tests were performed to analyze internal consistency, and the Intraclass Correlation Coefficient, for reliability. Agreement was established by a Level Content Validity Index greater than 0.90. Results: the assessment instrument showed high internal consistency (Cronbach's alpha of 0.89; McDonald's omega of 0.91) with reliable values. Based on the Intraclass Correlation Coefficient, judges' answers showed acceptable reliability, mean score 0.89 (p<0.001). Agreement among judges was greater than 0.90 in the three assessed dimensions (objectives, presentation and relevance). Conclusions: the technology was considered a qualified and adequate tool by the judges regarding its objectives, presentation and relevance.

RESUMEN Objetivos: validar la tecnología educativa "Material Educativo sobre VIH" (INPI - BR 10 2020 003765 0). Métodos: estudio metodológico con 39 jueces expertos en VIH/SIDA, utilizando una escala Likert de 5 puntos para evaluación. Los datos fueron tabulados, procesados y analizados mediante análisis descriptivo. Se realizaron las pruebas alfa de Cronbach y omega de McDonald para analizar la consistencia interna y el Intraclass Correlation Coefficient para la confiabilidad. La concordancia fue establecida por un Level Content Validity Index superior a 0,90. Resultados: el instrumento de evaluación mostró alta consistencia interna (alfa de Cronbach de 0,89; omega de McDonald de 0,91) con valores confiables. Con base en el Intraclass Correlation Coefficient, las respuestas de los jueces mostraron una confiabilidad aceptable, puntaje promedio de 0,89 (p<0,001). La concordancia entre jueces fue superior a 0,90 en las tres dimensiones evaluadas (objetivos, presentación y relevancia). Conclusiones: la tecnología fue considerada una herramienta calificada y adecuada por los jueces en cuanto a sus objetivos, presentación y pertinencia.

RESUMO Objetivos: validar a tecnologia educacional "Material Educativo sobre HIV" (INPI - BR 10 2020 003765 0). Métodos: estudo metodológico com 39 juízes experts em HIV/AIDS, utilizando escala Likert de 5 pontos para avaliação. Os dados foram tabulados, processados e analisados mediante análise descritiva. Realizaram-se os Testes alfa de Cronbach e ômega de McDonald para análise da consistência interna, e Intraclass Correlation Coefficient, para confiabilidade. A concordância foi estabelecida pelo Level Content Validity Index maior que 0,90. Resultados: o instrumento de avaliação apresentou alta consistência interna (alfa de Cronbach de 0,89; ômega de McDonald de 0,91) com valores confiáveis. A partir do Intraclass Correlation Coefficient, as respostas dos juízes apresentaram confiabilidade aceitável, escore médio 0,89 (p<0,001). A concordância entre os juízes foi superior a 0,90 nas três dimensões avaliadas (objetivos, apresentação e relevância). Conclusões: a tecnologia foi considerada uma ferramenta qualificada e adequada pelos juízes quanto aos seus objetivos, apresentação e relevância.

Indicadores de Violência Doméstica no Estado do Acre e o Papel do Cirurgião Dentista na sua Identificação Precoce

Objetivo: Discutir os indicadores de violência doméstica segundo o ciclo de vida e o tipo de violência no estado do Acre no período de 2013 a 2017 e o papel do Cirurgião Dentista na sua identificação precoce. Método: Estudo transversal de abordagem quantitativa, a partir da base de dados secundárias do Sistema DataSUS, referente aos indicadores de violência doméstica, sexual e outras, no estado do Acre, dos últimos cinco anos registrados no Sistema, organizados em planilhas no programa Microsoft Excel. Resultados e Discussão: Foram identificadas o total de 8.785 notificações no período, sendo 7.684 do sexo feminino e 1.101 do sexo masculino, o que demonstra a vulnerabilidade da mulher nos casos de violência. A violência física ocupou a 1ª posição com relação ao número de notificações com 3.442, seguida da sexual com 3.384, psico/moral 1.286, tortura 530, negligencia/abandono 109 e econômica/financeira com 31. O ciclo de vida que o sexo masculino teve mais notificação foi em idosos a partir de 60 anos, mas a diferença foi mínima de 100 para 78 no sexo feminino. Conclusão: O Cirurgião Dentista deve contribuir com a equipe multidisciplinar na identificação precoce de casos de violência doméstica, pois a região de cabeça e pescoço são áreas comumente afetadas. Assim o mesmo tem a capacidade e conhecimento para distinguir as lesões que possam ser de origem acidental ou intencional, a partir de uma anamnese e um exame físico apurado.

Cross-cultural adaptation of the University Student Depression Inventory for Brazil.

OBJECTIVES: to adapt the University Student Depression Inventory for Brazil. METHODS: we used 6 methodological stages: initial translation, translation synthesis, back-translation, expert committee, pre-final version testing and document submission to the scale authors for assessing the adaptation process. The judges were 2 methodologists, 1 health professional and 2 translators. For the pre-test, 30 undergraduate and graduate students participated. RESULTS: the data were analyzed by Excel®, resulting in satisfactory content validity, a scale composed of 30 items, 3 domains and a total CVC of 0.91. Language clarity and practical relevance had a CVC of 0.91 and theoretical relevance of 0.90. CONCLUSIONS: the USDI-BR was cross-culturally adapted for Brazil, showing evidence of satisfactory content validity. After an analysis of reliability and convergent validity to be tested in future studies, multidisciplinary teams will be able to apply this scale to Brazilian students.

Coryanthes macrantha (Orchidaceae: Stanhopeinae) and their floral and extrafloral secretory structures: an anatomical and phytochemical approach.

Coryanthes is one of the most fascinating genera of Stanhopeinae (Orchidaceae) because of its complex pollination mechanism and the peculiar structures of its flowers. Although Coryanthes macrantha is widely studied, investigation of the secretory structures and floral biology is important to understand the mechanisms and ecology of pollination, which deserve attention despite the difficulties of collecting fertile material in nature. We conducted a morpho-anatomical analysis of the floral and extrafloral secretory structures of C. macrantha to better understand the secretory structures, contribute to the knowledge of its floral biology and/or pollination processes and understand the ecological function of these structures. The analysis revealed that C. macrantha has epidermal osmophores with unicellular papillae that were foraged by male Eulaema bees, floral nectaries in the sepals and extrafloral nectaries in the bracts. In both the floral and extrafloral nectaries, the nectar is exuded by the stomata. Azteca ants foraged the bract and sepal nectaries in pre-anthesis and post-anthesis. We also described the secretory epidermis of pleuridia, and the mode of secretion of osmophores and nectaries and found that they attract specific foraging agents.

Larval gut microbiome of Pelidnota luridipes (Coleoptera: Scarabaeidae): high bacterial diversity, different metabolic profiles on gut chambers and species with probiotic potential.

Pelidnota luridipes Blanchard (1850) is a tropical beetle of the family Scarabaeidae, whose larvae live on wood without parental care. Microbiota of mid- and hindgut of larvae was evaluated by culture-dependent and independent methods, and the results show a diverse microbiota, with most species of bacteria and fungi shared between midgut and hindgut. We isolated 272 bacterial and 29 yeast isolates, identified in 57 and 7 species, respectively, while using metabarcoding, we accessed 1,481 and 267 OTUs of bacteria and fungi, respectively. The composition and abundance of bacteria and fungi differed between mid- and hindgut, with a tendency for higher richness and diversity of yeasts in the midgut, and bacteria on the hindgut. Some taxa are abundant in the intestine of P. luridipes larvae, such as Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria; as well as Saccharomycetales and Trichosporonales yeasts. Mid- and hindgut metabolic profiles differ (e.g. biosynthesis of amino acids, cofactors, and lipopolysaccharides) with higher functional diversity in the hindgut. Isolates have different functional traits such as secretion of hydrolytic enzymes and antibiosis against pathogens. Apiotrichum siamense L29A and Bacillus sp. BL17B protected larvae of the moth Galleria mellonella, against infection by the pathogens Listeria monocytogenes ATCC19111 and Pseudomonas aeruginosa ATCC 9027. This is the first work with the larval microbiome of a Rutelini beetle, demonstrating its diversity and potential in prospecting microbial products as probiotics. The functional role of microbiota for the nutrition and adaptability of P. luridipes larvae needs to be evaluated in the future.

Violência laboral contra professores da rede pública de nível fundamental e médio / Workplace violence against teachers of public elementar and high schools

O presente estudo teve por objetivo identificar a prevalência da violência laboral perpetrada contra professores da rede pública de nível fundamental e médio. Trata-se de um estudo transversal com dados coletados entre julho de 2018 e fevereiro de 2019, com 200 professores de 18 escolas públicas urbanas, de um município do interior do estado do Paraná, Brasil. Análises descritivas e inferenciais foram realizadas e razões de prevalência (RP) calculadas. A prevalência de atos violentos físicos e verbais foi de 3% e 28%, respectivamente, sendo cometidos principalmente por alunos do sexo masculino. A violência verbal foi mais frequente contra professores do sexo masculino (p=0,021; RP=1,12) e com mais de 40 anos (p=0,034; RP=1,10), ocorreu mais de três vezes no último ano, dentro da instituição e configurou-se em experiências que geraram perda da satisfação com o trabalho, permeadas por sentimento de injustiça e impotência. Pode-se concluir que os professores sofreram violência laboral de natureza física e verbal nos ambientes educacionais. (AU)

The objective of the present study is to identify theprevalence of workplace violence against teachers in public elementary and high schools. This is a cross-sectional study with data collected from July 2018 to February 2019, with 200 teachers from 18 urban public schools, in a municipality located in the center-west of the state of Paraná, Brazil. Descriptive and inferential analyses were performed, and prevalence ratios (PR) were calculated. The prevalence of physical and verbal violent acts was 3% and 28%, respectively, and male students were the main agents. Verbal violence was more frequent against male teachers (p=0.021; PR=1.12) and those over 40 years old (p=0.034; PR=1.10), it occurred more than three times in the past year, within the educational environment and were events that resulted in loss of professional satisfaction associated with feelings of injustice and powerlessness. The study concluded that teachers suffered physical and verbal workplace violence in educational environments.(AU)

Performance, Carcass Traits, Pork Quality and Expression of Genes Related to Intramuscular Fat Metabolism of Two Diverse Genetic Lines of Pigs.

We aimed to evaluate the performance, carcass and pork quality traits, as well as the mRNA expression of genes related to intramuscular fat deposition in female pigs from different genetic lines. A total of eighteen female pigs (Large White × Landrace × Duroc × Pietrain) × (Large White × Landrace) (Hybrid) averaging 88.96 ± 3.44 kg in body weight and twelve female pigs (Duroc) × (Large White × Landrace) (Duroc) averaging 85.63 ± 1.55 kg in body weight were assigned to a completely randomized design experimental trial that lasted 45 days. Pigs from both genetic lines received the same diet, which was initially adjusted for their nutritional requirements from 0 to 17 days of age and subsequently adjusted for nutritional requirements from 17 to 45 days of age. The performance of pigs did not differ among groups (p > 0.05). Duroc pigs showed a lower backfat thickness (p < 0.03) and greater intramuscular fat content (p < 0.1). A greater mRNA expression of the peroxisome proliferator-activated receptor gamma gene (PPARγ, p = 0.008) and fatty acid protein translocase/cluster differentiation (FAT/CD36, p = 0.002) was observed in the Longissimus dorsi muscle of Duroc pigs. Similarly, a greater expression of PPARγ (p = 0.009) and FAT/CD36 (p = 0.02) was observed in the Soleus muscle of Duroc pigs. Overall, we observed that despite the lack of differences in performance between the genetic groups, Duroc pigs had greater intramuscular fat content than hybrid pigs. The increased intramuscular fat content was associated with an increase in the mRNA expression of key transcriptional factors and genes encoding enzymes involved in adipogenesis and lipogenesis in glycolytic and oxidative skeletal muscle tissues.

Homozygotes NAT2*5B slow acetylators are highly associated with hepatotoxicity induced by anti-tuberculosis drugs.

BACKGROUND: Distinct N-acetyltransferase 2 (NAT2) slow acetylators genotypes have been associated with a higher risk to develop anti-tuberculosis drug-induced hepatotoxicity (DIH). However, studies have not pointed the relevance of different acetylation phenotypes presented by homozygotes and compound heterozygotes slow acetylators on a clinical basis. OBJECTIVES: This study aimed to investigate the association between NAT2 genotypes and the risk of developing DIH in Brazilian patients undergoing tuberculosis treatment, focusing on the discrimination of homozygotes and compound heterozygotes slow acetylators. METHODS/FINDINGS: The frequency of NAT2 genotypes was analysed by DNA sequencing in 162 patients undergoing tuberculosis therapy. The mutation analyses revealed 15 variants, plus two new NAT2 mutations, that computational simulations predicted to cause structural perturbations in the protein. The multivariate statistical analysis revealed that carriers of NAT2*5/*5 slow acetylator genotype presented a higher risk of developing anti-tuberculosis DIH, on a clinical basis, when compared to the compound heterozygotes presenting NAT2*5 and any other slow acetylator haplotype [aOR 4.97, 95% confidence interval (CI) 1.47-16.82, p = 0.01]. CONCLUSION: These findings suggest that patients with TB diagnosis who present the NAT2*5B/*5B genotype should be properly identified and more carefully monitored until treatment outcome in order to prevent the occurrence of anti-tuberculosis DIH.

Effects of feeding ractopamine hydrochloride with or without supplemental betaine on live performance, carcass and meat quality traits, and gene expression of finishing pigs.

The objective of this study was to evaluate the effects of ractopamine and betaine, supplemented alone or in combination, on live performance, carcass and meat quality traits, and gene expression (in both skeletal muscle and subcutaneous adipose tissue) of finishing pigs. Seventy-two pigs averaging 89.0 ± 3.44 kg were assigned to a control diet (CTRL-without ractopamine and betaine); CTRL+20 mg/kg ractopamine (RAC); CTRL+2.5 g/kg betaine (BET); or RAC + 2.5 g/kg betaine (RAC + BET). Pigs fed RAC and RAC + BET had greater average daily gain and carcass yield compared to CTRL. Pigs fed RAC, BET, and RAC + BET had greater loin muscle area, while backfat thickness was lower in pigs fed RAC + BET compared to CTRL. Pork from BET had lower shear-force and greater intramuscular fat content compared to CTRL. Regarding adipose tissue, RAC and BET increased expression of genes related to lipolysis and ß-oxidation. These data indicate that performance and carcass traits of pigs can be improved with ractopamine, whereas betaine (when fed independently from ractopamine) increased the loin muscle area and pork quality.

Effects of the brain-damaged side after stroke on the learning of a balance task in a non-immersive virtual reality environment.

Background: Post-stroke survivors with right hemisphere injury have more impairments in postural control and balance. However, the impact of the hemisphere injured on the process of balance reacquisition has not been fully explored. We hypothesized that stroke survivors could learn balance tasks (H1), but right hemisphere damaged patients would show poor motor learning if compared to left hemisphere damaged patients (H2)Objective: To investigate whether the brain-damaged side after stroke affects the learning of a balance task. Methods: Three groups were recruited: twenty stroke survivors (ten left and ten right hemisphere damage) and twenty healthy volunteers. The participants practiced a balance task for thirty minutes, four consecutive days. The task was the Table Tilt game (NintendoTM Company), which induces balance demands with a progression of complexity. Motor performance was assessed at baseline, post-practice and after one week (retention test). Accuracy, errors, and complexity of the task achieved during the trial were assessedResults: Participants in all groups improved their performance (p < .001) and maintained it at the retention test. The control group showed better performance if compared to the right and left hemisphere damaged stroke survivors (p < .05). There was no difference between individuals with right and left hemisphere damaged, but the right hemisphere damaged patients demonstrated more errors at higher levels of complexityConclusion: Stroke survivors can learn balance tasks (H1), and the right hemisphere damaged patients demonstrate more errors than those with left hemisphere injury in higher complexity conditions (H2).