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The present study sought to evaluate the antimicrobial and anti-adherent potential of Eucalyptus radiata essential oil against food-borne strains of Escherichia coli. The study was performed using the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). In addition, the disk diffusion technique was used to evaluate the association of Eucalyptus radiata essential oil with synthetic antimicrobials. The Minimum Inhibitory Adherence Concentration (MIC) was also performed. The results revealed that E. radiata showed antimicrobial activity against the E. coli strains tested, with MIC values ranging from 500 µg/mL to 1000 µg/mL and MBC values ranging from 500 µg/mL to 1,024 µg/mL. As for the associations, it was observed that E. radiata oil exhibited a synergistic effect for some antibiotics, especially Ceftriaxone, with greater interference from the essential oil. Furthermore, it was effective in inhibiting the adherence of bacterial strains of E. coli, showing a more significant antibiofilm effect than the antibacterial agent 0.12% chlorhexidine digluconate. In summary, the essential oil of E. radiata showed antimicrobial potential against strains of E. coli of food origin, and can therefore, through in-depth studies, be used alone or in association with synthetic antimicrobials to combat infections caused by this pathogen.

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Mexico City was severely affected by the September 19, 2017 Puebla-Morelos earthquake (M w = 7.1). City authorities confirmed that more than 12,000 structures for all uses were damaged as a consequence of this earthquake. In this paper, the focus of attention is devoted to trying to quantify in a simple manner how resilient the built environment in Mexico City was during the September 19, 2017 earthquake. Global statistics compiled for the severity of damage observed during this seismic event from detailed information gathered from well-documented and detailed damage surveys were used for this purpose. Also, an update is provided on how the seismic reconstruction and recovery processes of the built environment in Mexico City have been after this earthquake. This adaptive resilience has been assessed from reliable information and statistics of the ongoing reconstruction process of the affected built environment in Mexico City. The implementation of structural health monitoring programs for typical, representative buildings within the city would be germane to detect and correct potential structural deficiencies on time before the next strong earthquake may strike, then helping to improve the seismic resilience of the built environment.

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AIMS: To evaluate the association between working conditions and visual fatigue and mental health among systems analysts living in São Paulo, Brazil. METHODS: A cross sectional study was carried out by a multidisciplinary team. It included: ergonomic analysis of work, individual and group interviews, and 553 self applied questionnaires in two enterprises. The comparison population numbered 136 workers in different occupations. RESULTS: The study population mainly comprised young males. Among systems analysts, visual fatigue was associated with mental workload, inadequate equipment and workstation, low level of worker participation, being a woman, and subject's attitude of fascination by the computer. Nervousness and intellectual performance were associated with mental workload, inadequate equipment, work environment, and tools. Continuing education and leisure were protective factors. Work interfering in family life was associated with mental workload, difficulties with clients, strict deadlines, subject's attitude of fascination by the computer, and finding solutions of work problems outside work. Family support, satisfaction in life and work, and adequate work environment and tools were protective factors. Work interfering in personal life was associated with subject's attitude of fascination by the computer, strict deadlines, inadequate equipment, and high level of work participation. Satisfaction in life and work and continuing education were protective factors. The comparison population did not share common working factors with the systems analysts in the regression analysis. CONCLUSIONS: The main health effects of systems analysts' work were expressed by machine anthropomorphism, being very demanding, mental acceleration, mental absorption, and difficulty in dealing with emotions.

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Seven cases of workers selected among 150 who had undergone psychiatric treatment at the Workers' Health Reference Centers in Santo Amaro and André Gabois from 1994 to 1997 were presented for a detailed analysis characterizing work situations and discussing definition of the diagnosis and causal connections with work. The qualitative case study provides a thematic analysis of the patient history and files. Work situations are characterized by: unhealthy working conditions, problems related to work organization, inadequate human resources management, and urban violence. Symptoms included: fear, anxiety, depression, nervousness, tension, fatigue, malaise, loss of appetite, sleep disorders, and psychosomatic disorders (gastritis, hypertension); in addition, workers were unable to forget about work while off the job. Diagnosis varied. Three cases involved post-traumatic syndrome. Two cases involved organic psychosis linked to accidents or exposure to neurotoxic chemical products. Cases also included neurotic syndromes of fatigue, depression, and paranoia, as well as adaptation and reaction to acute stress. In all of the cases it was possible to relate the clinical picture to the work situation.

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OBJECTIVE: To assess the health impact of working conditions among male and female systems analysts. METHODS: In this cross-sectional study, 533 systems analysts of two data analysis companies located in the metropolitan area of São Paulo were studied. Data was collected using work ergonomic assessments, individual and group semi-structured interviews and a self-applied questionnaire. Data analysis was based on contingency tables, Chi-square values at 5% level, prevalence rates and ratios, and their 95% confidence intervals. RESULTS: Of the participants, 40.7% were women who on average were younger that the studied men (59.6% of women and 39% of men were in the age range 25 to 34). Though fatherhood was more frequently seen among men (57.6% x 34.2% for women), women spent more time with household tasks, including children care. There were more men in leading management positions. Work-related discomfort factors were seen in both sexes at similar frequencies. Men most commonly complained of work overload due to tight deadlines, high degree of responsibility, mental strain, and work complexity. Women more frequently complained of postural discomfort, higher exposure to video display terminal, and obsolete equipment. Women reported more visual, musculoskeletal and stress related symptoms, and higher work dissatisfaction and mental fatigue. CONCLUSIONS: The study suggests that the health impact on female systems analysts is associated with the work demands and the women's social role. There is a need of further studies associating health, work and gender and an assessment of the intersection between the domestic and productive roles.

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Se da a conocer información almacenada en una base de datos perteneciente al Centro Nacional de Prevención de Desastres de la Secretaría de Gobernación, que describe la problemática de los riesgos geológicos, como sismos y volcanes; los riesgos hidrometereológicos, como inundaciones, huracanes, sequías y erosión y de los riesgos químicos, tales como incendios, explosiones y contaminación por desechos industriales. En el presente documento se describe un modelo para estimar movimientos del terreno y daño a edificaciones, basado en relaciones intensidad-daño derivadas de 14 clases de edificios representativos de la construcción en la ciudad de México.

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Na analise das relacoes entre saude e trabalho industrial, devem ser consideradas as relacoes sociais, as caracteristicas tecnicas e organizacionais do processo imediato de producao e as condicoes gerais de vida, uma vez que elas definem o processo de fadiga. As estatisticas nao tem expressado a realidade quanto a ocorrencia dos agravos a saude do trabalhador.A sonegacao do registro de acidentes de trabalho deve-se as empresas, ao Estado e ao proprio trabalhador. O aprofundamento dos estudos e a analise critica, a partir da divisao social e tecnica do trabalho dos aspectos relacionados a ocorrencia e ao registro destes agravos a saude, sao fundamentais ao conhecimento e ao controle das condicoes socio-sanitarias

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