Search results

This paper aims at demonstrating the importance of the adoption of risk management strategies by companies operating in the agribusiness sector. The future evolution of the sector requires the change of operations and the digital advancement of agribusiness enterprises. The latter must put in place some risk management mechanisms to cope with the different risks faced in order to capture the necessary capital on the financial markets to update their operations. Qualitative interviews, conducted with investment managers from different Brazilian financial institutions, highlighted that the most important risk faced by enterprises operating in agriculture is the so-called commodity price risk. Futures, storage, insurances and vertical integration are the most common strategies implemented by companies to limit the volatility of revenues and profit. Through the literature review and empirical analyses, the paper will examine the efficacy of these four strategies on Brazilian agribusiness small and medium enterprises (SMEs). The analyses show that all the four strategies at firm-level present some drawbacks, which negatively affect their use and efficacy. While for large size enterprises futures are an effective hedging strategy, SMEs face problems in the use of these financial instruments due to their high cost, their time of maturity, the required quality of the underlying assets and the delivery location. Moreover, while according to N. Scott volatility reduces along the stages of agricultural value chains, this research shows that this phenomenon is true only for some industries and so vertical integration does not always bring benefits and reduce price volatility. In the following years, risk management strategies and financial instruments should evolve with the purpose of facilitating the advancement of the agribusiness sector. Finally, Brazilian government should consider taking an active role in limiting the overall risk exposure of SMEs operating in the primary sector. By developing national protection ...

El artículo no presenta resumen.

Due to the progressive advance of clinical investigation, new demands and requirements are made necessary, such as: the formation of ethics committees, the creation or adaptation of legislation, and increased training for researchers, among others.The objective of this article is to report on what occurred with the Peruvian Regulation of Clinical Tests and to analyze if the Peruvian regulation includes an effective participation of the community in ethics committees. ; Debido al avance progresivo de la investigación clínica, nuevas exigencias y requerimientos se hacen necesarios, tales como: apertura de comités de ética, creación o adaptación de legislaciones, mayor entrenamiento de investigadores, entre otros.El objetivo del presente artículo es hacer una crónica de lo sucedido con Reglamento Peruano de Ensayos Clínicos y analizar si la regulación peruana incluye una efectiva participación de la comunidad en los comités de ética. ; Devido ao avanço progressivo da pesquisa clínica, novas exigências e requerimentos se fazem necessários, tais como: criação de comitês de ética, criação ou adaptação de legislações, maior treinamento de pesquisadores, entre outros.O objetivo do presente artigo é fazer uma crônica do sucedido com o Regulamento Peruano de Ensaios Clínicos e analisar se a regulação peruana inclui uma efetiva participação da comunidade nos comitês de ética.

Introdução: A voz é o principal instrumento de trabalho do professor, por isso eles estão mais propensos a desenvolverem problemas vocais. O estresse é considerado um fator de risco importante relacionado ao distúrbio de voz. No entanto, há poucos estudos com instrumentos voltados à identificação dos estressores a partir do diagnóstico organizacional. Objetivo: Verificar a relação entre estresse, ambiente de trabalho e voz, em professores do Ensino Infantil e Fundamental I da Rede Municipal de Ensino. Métodos: Estudo observacional, transversal, de abordagem quantitativa, com 36 professores da rede pública do município de Maceió. Foram aplicados o Protocolo Condição de Produção Vocal do Professor-CPV-P, o questionário Escala de Estresse no Trabalho, bem como foi realizado o registro de voz dos professores para análise perceptivo-auditiva. Os dados foram analisados de forma descritiva e inferencial, utilizando o software SPSS 25.0, assim como foram realizados o teste Qui-quadrado e o Coeficiente de Correlação de Pearson. Resultados: O ambiente de trabalho estressante atuou como um desencadeador de alteração vocal e pode-se observar que o ruído colabora para a presença de estresse. Além disso, os docentes que relataram apresentar queixas de alterações vocais são os que possuem índice de estresse global médio. Houve correlação positiva entre o tempo de profissão e o nível de estresse, com valor de p = 0,02, mostrando significância estatística. Conclusão: Este estudo demonstrou que há relação discreta entre o ambiente de trabalho ruidoso, o estresse ocupacional e a alteração vocal nos professores estudados.

Background: Pandemic fatigue generates low motivation or the ability to comply with protective behaviors to mitigate the spread of COVID-19. Aims: This study aimed to analyze the symptoms of pandemic fatigue through network analysis in individuals from five South American countries. Method: A total of 1,444 individuals from Argentina, Bolivia, Paraguay, Peru, and Uruguay participated and were evaluated using the Pandemic Fatigue Scale. The networks were estimated using the ggmModSelect estimation method and a polychoric correlation matrix was used. Stability assessment of the five networks was performed using the nonparametric resampling method based on the case bootstrap type. For the estimation of network centrality, a metric based on node strength was used, whereas network comparison was performed using a permutation-based approach. Results: The results showed that the relationships between pandemic fatigue symptoms were strongest in the demotivation dimension. Variability in the centrality of pandemic fatigue symptoms was observed among participating countries. Finally, symptom networks were invariant and almost identical across participating countries. Conclusions: This study is the first to provide information on how pandemic fatigue symptoms were related during the COVID-19 pandemic.