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We consider an autonomous Hamiltonian systemq + V q (q) = 0 in R 2 , where the potential V has a global maximum at the origin and singularities at some points ξ 1 , ξ 2 ∈ R 2 \ {0}. Under some compactness conditions on V at infinity and assuming a strong force type condition at the singularities, we study, using variational arguments, the existence of various types of heteroclinic and homoclinic solutions of the system.

BACKGROUNDCutaneous melanoma (CM) is considered serious for causing frequent metastasis, presenting high mortality, resistance to available therapies and incidences in laboring activity.OBJECTIVESTo study the histopathological types of cutaneous melanoma in Palmas-TO from 2001 to 2011, according to risk factors, location of lesions, Clark levels and Breslow thickness.METHODSA descriptive, retrospective and quantitative research in reports of the Serviços de Anatomia Patológica in Palmas (SAPP) and Registro de Câncer de Base Populacional de Palmas (RCBPP).RESULTSThe years of highest incidences were: 2004 (8 cases/17.8%), 2008 and 2011 (7 cases each/15.6%) and 2010 (6 cases/13.3%). Among the 45 cases studied, there were predominance in patients between 41 and 60 years old, women, caucasians, farmers, located in trunk, in situ type, superficial extensive and metastatic cutaneous, Clark levels I (20%) and IV (17.7%), Breslow thickness ≤1 mm (35.5%) and 2.01 to 4 mm (24.4%).CONCLUSIONSThe most common histopathological types were: cutaneous melanoma in situ, superficial extensive and metastatic, followed by nodular cutaneous melanoma, and finally, by other forms. In this study, Clark levels and Breslow thickness pointed to greater importance of thin melanomas and sun exposure without appropriate protection in farmers.

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Objective: To analyze the correlation between quality of life at work and Burnout in workers in the Family Health Strategy. Methods: Correlational, cross-sectional study carried out with 112 workers, in the pandemic period (October/2020 to June/2021), in Palmas/Tocantins. The Quality of Work Life Assessment Questionnaire (QWLQ-bref) and the Maslach Burnout Inventory - Human Services Survey (MBI-HSS) were used. Results: A strong negative correlation was identified between Emotional Exhaustion and the Physical/Health, Professional and Total Quality of Life Score at work; and moderate negative correlation between Depersonalization and all domains of Quality of Work Life. Professional Achievement showed a moderate positive correlation with the Psychological and Personal domains and with the Total Quality of Work Life Score. Conclusion: The best Quality of Work Life indices were correlated with lower Emotional Exhaustion and Depersonalization scores and higher scores of Professional Achievement.