Corrupção e valor de mercado: os efeitos da Operação Lava Jato sobre o mercado de ações no Brasil

This paper aims to identify the effects of the disclosure of corruption events on the market values of companies listed on the Brazilian Stock Exchange. For this purpose, we applied the event studies methodology to evaluate the influence of exposing the phases of one of the most extensive Brazilian anti-corruption operations - the Lava Jato Operation - on the cumulative abnormal return of shares, both of the companies cited in the investigations (direct involvement) and of those listed in the same segments as the cited companies. Results indicate that the Lava Jato Operation reduced the market values of the companies directly involved in the corruption scandals above market variations. For the other companies in the concerned segments, there was a positive effect on the cumulative abnormal returns. Such results suggest that the onset of anti-corruption operations such as the Lava Jato Operation has the potential to reduce pricing differences that exist between companies that directly participate in fraudulent contracts and other companies in the same segments. This pricing adjustment may be associated with the correction made by the market due to losses in competiveness caused by unfair competition.Este trabalho tem por objetivo identificar quais são os efeitos causados pela divulgação de eventos de corrupção sobre o valor de mercado das empresas listadas na Bolsa de Valores brasileira. Para tanto, utilizou-se a metodologia de estudos de eventos, a fim de avaliar a influência da divulgação das fases de uma das maiores operações anticorrupção brasileira (Operação Lava Jato) sobre o retorno anormal acumulado das ações, tanto de companhias citadas nas investigações (envolvimento direto) quanto de companhias listadas nos setores das companhias citadas. Os resultados indicam que a Lava Jato reduziu o valor de mercado das empresas diretamente envolvidas com os escândalos de corrupção acima de variações que ocorreram no mercado. Já, para as demais empresas dos setores envolvidos, evidenciou-se um efeito positivo sobre o retorno anormal acumulado. Tais resultados sugerem que a deflagração de operações anticorrupção como a Lava Jato tem potencial para reduzir diferenças de precificação existentes entre empresas que participam diretamente de contratos fraudulentos e demais empresas do mesmo setor. Tal ajuste de precificação pode estar associado à correção feita pelo mercado mediante os prejuízos trazidos pela concorrência desleal à competitividade

The antiapoptotic effect of granulocyte colony-stimulating factor reduces infarct size and prevents heart failure development in rats

Background/Aim. Granulocyte colony-stimulating factor (G-CSF) reduces myocardial injury and improves cardiac function after myocardial infarction (MI). We investigated the early alterations provided by G-CSF and the chronic repercussions in infarcted rats. Methods. Male Wistar rats (200-250g) received vehicle (MI) or G-CSF (MI-GCSF) (50 mu g/kg, sc) at 7, 3 and 1 days before MI surgery. Afterwards MI was produced and infarct size was measured 1 and 15 days after surgery. Expression of anti-and proapoptotic proteins was evaluated immediately before surgery. 24 hours after surgery, apoptotic nuclei were evaluated. Two weeks after MI, left ventricular (LV) function was evaluated, followed by in situ LV diastolic pressure-volume evaluation. Results. Infarct size was decreased by 1 day pretreatment before occlusion (36 +/- 2.8 vs. 44 +/- 2.1% in MI; P<0.05) and remained reduced at 15 days after infarction (28 +/- 2.2 vs. 36 +/- 1.4% in MI; P<0.05). G-CSF pretreatment increased Bcl-2 and Bcl-xL protein expression, but did not alter Bax in LV. Apoptotic nuclei were reduced by treatment (Sham: 0.46 +/- 0.42, MI: 15.5 +/- 2.43, MI-GCSF: 5.34 +/- 3.34%; P<0.05). Fifteen days after MI, cardiac function remained preserved in G-CSF pretreated rats. The LV dilation was reduced in MI-G-CSF group as compared to MI rats, being closely associated with infarct size. Conclusion. The early beneficial effects of G-CSF were essentials to preserve cardiac function at a chronic stage of myocardial infarction2813340CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPsem informaçã

Tissue expresion of the genes mutyh and ogg1 in patients with sporadic colorectal cancer

sem informaçãoMTUYH and OGG1 genes have importance in the base excision repair systems of oxidized DNA bases. Modification of the tissue expression of these genes is related to the increased risk of developing colorectal cancer. Aim: To evaluate the tissue expression o30298102sem informaçãosem informaçãosem informaçã

Assessment of the nutritional profile through the 24-hour record in truckers in the central-southern Brazilian region: a prospective observational cross-sectional study

Introduction: Truck drivers are of great importance to the Brazilian economy. The exorbitant workload and long periods away from home are causes of the adoption of unhealthy eating habits, such as the intake of foods that are sources of lipids with high caloric value. Extensive travel contributes to a sedentary lifestyle. This causes health damage and comorbidities such as diabetes, obesity, hypertension, stress, and depression. Based on these considerations, the present study evaluates the nutritional profile of truck drivers. Objective: It was to evaluate the food quality of truck drivers in the Center-South Geoeconomic Region of the country, comparing the portions of macronutrients consumed with those recommended by the Brazilian Food Pyramid. Methods: Observational and cross-sectional study. The consumption of macronutrients by 100 truck drivers from the states of São Paulo, Minas Gerais, Mato Grosso do Sul and Goiás was qualitatively evaluated. The research used 24-hour food recalls, completed online, via Google Forms, between June and September 2020. Statistical analysis was obtained by calculating the Wilcoxon's non-parametric test to compare the medians of ingested portions and the ideas. Results: The Wilcoxon test identified significant differences between the number of servings consumed by truck drivers and the recommended ideal with regard to fruits, vegetables/vegetables, oils/fats, meats/eggs, sweets/sugars, milk, cheese and derivatives (p&lt;0.0001). Only the portions of carbohydrates were in accordance with the nutritional recommendations, that is, six portions a day (ns). In the class of sugars and sweets, consumption four times higher than recommended was observed. In the meat and eggs category, consumption was double the ideal. In oils and fats, triple the recommended value. The consumption of milk and dairy products is three times less than ideal, such as vegetables. Finally, the average value of fruit portions eaten by truck drivers was zero, while the recommended value is three. Conclusion: Among the food groups analyzed, carbohydrates were the only group in which consumption was adequate. There was a significant excess of sweets and fats intake by truck drivers, when compared to the ideal amount indicated by the food pyramid. The intake of milk and dairy products, vegetables and legumes was deficient, three times lower than recommended. Fruits counted as a median intake value of zero servings

MULTIPROFESSIONAL CARE TO MENTAL DISORDER PATIENTS UNDER THE PERSPECTIVE OF THE FAMILY HEALTH TEAM

Objetivo: Compreender a percepção dos profissionais da equipe de Saúde da Família acerca da atenção multiprofissional ao portador de sofrimento mental na Atenção Primária à Saúde. Método: Trata-se de uma pesquisa qualitativa, descritiva e exploratória. O instrumento de coleta de dados foi entrevista semi-estruturada, realizada no período entre os meses de agosto e setembro de 2011. Os discursos foram submetidos à análise de conteúdo do tipo temática, permitindo o desvelamento de quatro categorias temáticas. Resultados: os resultados mostraram que a equipe de saúde desenvolve ações isoladas e pouco inovadoras, retratando uma fragmentação na assistência multiprofissional ao portador de sofrimento mental na Estratégia Saúde da Família. Conclusão: necessita expandir a atenção à saúde aos portadores de sofrimento mental em base comunitária, por meio do trabalho multiprofissional e do acolhimento

MULTIPROFESSIONAL CARE TO MENTAL DISORDER PATIENTS UNDER THE PERSPECTIVE OF THE FAMILY HEALTH TEAM

Objetivo: Compreender a percepção dos profissionais da equipe de Saúde da Família acerca da atenção multiprofissional ao portador de sofrimento mental na Atenção Primária à Saúde. Método: Trata-se de uma pesquisa qualitativa, descritiva e exploratória. O instrumento de coleta de dados foi entrevista semi-estruturada, realizada no período entre os meses de agosto e setembro de 2011. Os discursos foram submetidos à análise de conteúdo do tipo temática, permitindo o desvelamento de quatro categorias temáticas. Resultados: os resultados mostraram que a equipe de saúde desenvolve ações isoladas e pouco inovadoras, retratando uma fragmentação na assistência multiprofissional ao portador de sofrimento mental na Estratégia Saúde da Família. Conclusão: necessita expandir a atenção à saúde aos portadores de sofrimento mental em base comunitária, por meio do trabalho multiprofissional e do acolhimento

Multiprofessional care to mental disorder patients under the perspective of the family health team

Objective: This work aimed to un derstand the perception of the Family Health Team professionals over mental disorder patients’ health assistance in Primary Health Care. Methods: This work is a qualitative, descriptive and exploratory research. The data collection instrument was the semi-structured interview conducted between August and September, 2011. The discourses were submitted to content analysis of the thematic type, enabling four thematic categories. Results: The results showed that the health team develops isolated actions and little innovative, portraying a fragmentation in multidisciplinary care to patients with mental illness in the Family Health Strategy. Conclusion: Health assistance for mental patients need to be improved in community basis through multiprofessional work and acceptance

Capacitação em propriedade intelectual e prospecção tecnológica por meio de patentes: análise da elaboração de método inovador/ Capacity building in intellectual property and technological prospection through patents: analysis of the elaboration of an innovative method

A divulgação dos conhecimentos contidos no documento de patente parte da perspectiva de que o conhecimento das novas tecnologias sirva de base para novas soluções, favorecendo o ciclo virtuoso de desenvolvimento tecnológico e inovação. Partindo do pressuposto que as Instituições e Ciência e Tecnologia (ICTs) se caracterizam por ambientes majoritariamente acadêmicos, verifica-se que a cultura nestes locais tradicionalmente aponta para a utilização de fonte clássicas de informação, como artigos científicos e livros. Isto posto, o objetivo que norteou esse estudo foi desenvolver um método para difundir conhecimentos acerca da relevância da utilização da informação tecnológica das patentes. Para tanto, procedeu-se uma revisão do estudo produzido por Baltazar et al. (2017) verificando o nível de utilização de informação tecnológica oriunda de documentos de patente. Em seguida, procedeu-se uma análise SWOT para a elaboração de um novo método de capacitação de pesquisadores de ICTs em propriedade intelectual, patentes e prospecção tecnológica por meio de patentes. Por fim, realizou-se a elaboração de um novo método de capacitação para análise de patentes e prospecção tecnológica a partir de patentes

EVALUATION OF TENOTOMY IN THE HIP SUBLUXATION TREATMENT OF CHILDREN WITH ZIKA SYNDROME

ABSTRACT Objectives: Evaluate the efficacy and effects of releasing the muscles of subluxated hips of patients with SCZ. Methods: This is a retrospective study with 29 patients with subluxation of the hip, corresponding to 55 hips operated in a public hospital in Recife, Brazil. Preoperative femoral head migration (PM) percentages were evaluated and compared with 6- and 12-month postoperative results. Results: Twenty-nine patients were eligible, representing 55 hips evaluated. 19 were female (65.5%), with a mean age of 31.45 months (ranging from 23 to 42 years). 19 patients were GMFCS level V (65.5%), 34.5% were level IV, and 20 of the 29 patients (69%) had no complications. The PM had an absolute reduction of 11.6% (GMFCS IV) and 13.31% (GMFCS V) in the first six months. After 12 months, there was a regression of MP of 7.14% (GMFCS V) and 11.25% (GMFCS IV) compared to preoperative values, with no significant statistical difference among MP values presented between 6 and 12 months after surgery. Conclusions: The surgery was effective in PM regression during the analyzed period and presented a low complication rate. Level of Evidence III; Comparative retrospective study

Abnormal co-doping effect on the red persistent luminescence SrS:Eu2+,RE3+ materials

Persistent luminescence materials are a reality in several applications. However, there is still a lack of efficient red-emitting materials. SrS:Eu2+ phosphor is a potential candidate since its strong nephelauxetic effect shifts Eu(2+)4f(6)5d(1) -> 4f(7) to red, and its weak bond between strontium and sulphide, due to the soft base-hard acid character, generates a high number of intrinsic defects. SrS:Eu2+,RE3+ materials were efficiently prepared by two rounds of 22 min microwave-assisted solid-state synthesis. The highly crystalline purity and the material organization at the micro-scale were observed with X-ray powder diffraction and scanning electron microscopy, respectively. X-ray absorption spectroscopy revealed a low amount of Eu2+ compared to Eu3+ due to the efficient Eu2+ photo-oxidation by X-ray irradiation in the high storage capability SrS host matrix. Electron paramagnetic resonance spectra confirmed that at least 50% of Eu2+ ions in the material are photo-oxidized during excitation, reinforcing the previously established mechanisms. The RE2+ energy level positioned very close to or into the conduction band led to an abnormal co-doping effect, with similar effects independent of the co-dopant. The high concentration of intrinsic defects in SrS indicates that the soft-hard pair host is an excellent approach to develop efficient persistent luminescence materials