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  1. 1
    “…The paradoxical frog Pseudis tocantins is the only species in the Hylidae family with known heteromorphic Z and W sex chromosomes. …”
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    Unraveling the Sex Chromosome Heteromorphism of the Paradoxical Frog Pseudis tocantins
  2. 2
    “…OBJECTIVE: The objective of this study was to identify the levels of perceived stress in professionals who work in Emergency Care Units in the municipality of Palmas, state of Tocantins. METHODS: This was a cross-sectional study conducted with 165 health care professionals working in Emergency Care Units. …”
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    Perceived stress in workers of Emergency Care Units in Palmas, Tocantins
  3. 3
    “…Maximum likelihood analysis, using the mitogenomes of several anurans, indicated P. tocantins as closely related to other hylid species.…”
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    The mitochondrial genome of the endemic Brazilian paradoxical frog Pseudis tocantins (Hylidae)
  4. 4
    “…Triatoma jatai sp. nov. is the first new species of triatomine to be described in the state of Tocantins, in the northern region of Brazil. It was caught on rock outcrops in the wild environment and, more recently, invading homes. …”
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    Triatoma jatai sp. nov. in the state of Tocantins, Brazil (Hemiptera: Reduviidae: Triatominae)
  5. 5
    “…OBJECTIVES: To identify the risk factors for excessive stress among workers at the North emergency care unit, in Palmas, Tocantins, Brazil. METHODS: A questionnaire was administered covering basic information and data on lifestyle to the workers at the unit, in addition to the Epworth Sleepiness Scale and a single-item instrument for diagnosis of stress. …”
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    Risk factors for stress in professionals at the North emergency care unit in Palmas, Tocantins, Brazil
  6. 6
    “…The AMOVA revealed that the Arapaima populations of the Araguaia-Tocantins basin are structured significantly. No correlation was found between pairwise F(ST) values and the geographical distance among populations. …”
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    Low Genetic Diversity and Structuring of the Arapaima (Osteoglossiformes, Arapaimidae) Population of the Araguaia-Tocantins Basin
  7. 7
    “…The aim of this study was to evaluate the current HBV and HCV epidemiology among hemodialysis patients in the State of Tocantins comparing them with those found 14 years ago. …”
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    Decline in hepatitis B and C prevalence among hemodialysis patients in Tocantins, Northern Brazil
  8. 8
    “…This study evaluated the occurrence of bovine cysticercosis at the meat inspection procedures in slaughterhouses of south and north regions of the Tocantins State in Brazil. Specimens identified as cysts of T. saginata were collected and analyzed by molecular (PCR) and histopathological techniques. …”
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    Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
  9. 9
    “…OBJECTIVE: To perform a molecular screening to detect infections by the mayaro virus and possible coinfections with Chikungunya during an outbreak in the state of Tocantins/Brazil in 2017. RESULTS: Of a total 102 samples analyzed in this study, 6 cases were identified with simultaneous infection between mayaro and chikungunya viruses (5.88%). …”
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    Re-emergence of mayaro virus and coinfection with chikungunya during an outbreak in the state of Tocantins/Brazil
  10. 10
    “…Higher genetic diversity indices (number of polymorphic loci and private alleles, Shannon’s Index and H(O)) were found in populations from the Amazon and Solimões, intermediate levels in Tocantins and Captive, and very low levels in the Araguaia population. …”
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    Genetic diversity and structure in Arapaima gigas populations from Amazon and Araguaia-Tocantins river basins
  11. 11
    “…We examined ice-nucleating particles (INPs) in the plumes of the Tocantins and Amazon rivers, which drain watersheds with different proportions of degraded land. …”
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    Export of ice-nucleating particles from watersheds: results from the Amazon and Tocantins river plumes
  12. 12
    “…CONCLUSIONS: There was an increase in the number of hospitalizations for diarrhea in under 5–year-old children in the state of Tocantins. The spatial analysis identified clusters of priority areas for measures of maintenance and control of diarrheal diseases.…”
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    Socio-environmental factors and diarrheal diseases in under five-year old children in the state of Tocantins, Brazil
  13. 13
    “…BACKGROUND: The longstanding application of insecticides for vector control without periodic monitoring of the population response to these chemicals can directly drive the selection of resistant populations of vector mosquitoes. Tocantins is the newest state of the Brazilian Federation. …”
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    Evaluation of insecticide resistance in Aedes aegypti populations connected by roads and rivers: the case of Tocantins state in Brazil
  14. 14
    “…Two species of Cosmetocleithrum Kritsky, Thatcher & Boeger, 1986 (both new) and two species of Demidospermus Suriano, 1983 (one new) are reported from the gills of the catfish Auchenipterus nuchalis, popularly known as “mapará”, from the Tocantins River and tributaries, North Region of Brazil. …”
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    Dactylogyridae (Monogenoidea, Polyonchoinea) from the gills of Auchenipterus nuchalis (Siluriformes, Auchenipteridae) from the Tocantins River, Brazil
  15. 15
    “…Considering the lack of studies on freshwater fishes of the genus Colomesus, we conducted a survey the parasite fauna of Colomesus tocantinensis collected from the Tocantins River, Brazil. We first recorded the presence of the ectoparasites Ergasilus colomesus and Lernaea sp. where 96.77% of the fish were parasitized.…”
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    First record of two Copepoda species parasitizing Colomesus tocantinensis (Tetraodontiformes: Tetraodontidae) in the Tocantins-Araguaia basin, Brazil
  16. 16
    “…BACKGROUND: Although leishmaniases are regarded as serious public health issues in the State of Tocantins, as consequence of the impact of environmental changes, small advances in taxonomic and ecological studies of Phlebotominae fauna are taking place in this state. …”
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    Phlebotomine Fauna (Diptera: Psychodidae) and Putative Vectors of Leishmaniases in Impacted Area by Hydroelectric Plant, State of Tocantins, Brazil
  17. 17
    “…Determination of the epidemiological profile of the American tegumentary leishmaniasis (ATL) and identification of Leishmania species that are prevalent in the State of Tocantins were carried out through a retrospective and descriptive study based on data reported in SINAN, in the period from 2011 to 2015. …”
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    American tegumentary leishmaniasis: epidemiological and molecular characterization of prevalent Leishmania species in the State of Tocantins, Brazil, 2011-2015
  18. 18
    “…The results of analysis of molecular variance, Bayesian clustering and discriminant analysis of principal components showed that Arapaima in our samples represents two major populations, one in the Amazonas and one in the Araguaia-Tocantins River basins. The Amazonas population is further structured by isolation-by-distance with the hydrologically largely unconnected Amapá locality representing the eastern-most extreme of this continuum; gene flow predominates at distances of less than 1500 km with localities separated by over 2000 km dominated by genetic drift and effectively forming different populations. …”
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    The largest fish in the world’s biggest river: Genetic connectivity and conservation of Arapaima gigas in the Amazon and Araguaia-Tocantins drainages
  19. 19
    “…None of the genomes recovered within the Tocantins samples carry the A226V mutation in the E1 protein associated with increased transmission in A. albopictus. …”
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    Genomic Epidemiology Reveals the Circulation of the Chikungunya Virus East/Central/South African Lineage in Tocantins State, North Brazil
  20. 20
    “…Phlebotomine sandflies were captured in rural settlement and periurban areas of the municipality of Guaraí in the state of Tocantins (TO), an endemic area of American cutaneous leishmaniasis (ACL). …”
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    The phlebotomine fauna (Diptera: Psychodidae) of Guaraí, state of Tocantins, with an emphasis on the putative vectors of American cutaneous leishmaniasis in rural settlement and periurban areas
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