Environmental Enrichment
Mostrando 13-24 de 165 artigos, teses e dissertações.
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13. Contamination and Soil Biological Properties in the Serra Pelada Mine - Amazonia, Brazil
ABSTRACT Discovered in 1980 and unleashed an utter gold rush of the modern era, Serra Pelada was the largest open-air mine in Brazil. About 80,000 gold prospectors worked there until 1984, when the gold pits were flooded. The environmental impact caused by mining inflicted irreversible damage to the ecosystem, with the formation of a large lake and piles of
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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14. Multi-criteria decision analysis and spatial statistic: an approach to determining human vulnerability to vector transmission of Trypanosoma cruzi
BACKGROUND Chagas disease (CD), caused by the protozoan Trypanosoma cruzi, is a neglected human disease. It is endemic to the Americas and is estimated to have an economic impact, including lost productivity and disability, of 7 billion dollars per year on average. OBJECTIVES To assess vulnerability to vector-borne transmission of T. cruzi in domiciliary
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-10
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15. Influence of environmental enrichment on the behavior and physiology of mice infected by Trypanosoma cruzi
Abstract INTRODUCTION: Enriched environments normally increase behavioral repertoires and diminish the expression of abnormal behaviors and stress-related physiological problems in animals. Although it has been shown that experimental animals infected with microorganisms can modify their behaviors and physiology, few studies have evaluated how environmenta
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-06
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16. The effects of Environmental Enrichment on Some Physiological and Behavioral Parameters of Broiler Chicks
ABSTRACT This study aims to examine the effects of environmental enrichment (EE) practices on some physiological and behavioral parameters of broiler chicks. A total of 280 one-day old Ross 308 mixed-sex broiler chicks with an average initial body weight of 44.5±0.37 g were used in a 42-d trial. Broiler chicks were randomly allocated to 20 pens composed of
Rev. Bras. Cienc. Avic.. Publicado em: 2017-06
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17. Effect of baru (Dipteryx alata Vog.) addition on the composition and nutritional quality of cookies
Abstract The use of the defatted baru almond (Dipteryx alata Vog.) prevents the production of waste residues after extraction of its oil (partially defatted baru flour), representing a process of interest from an environmental point of view. The aim of this study was to prepare oat cookies with functional properties, replacing 100% soy oil for baru oil and 3
Food Sci. Technol. Publicado em: 29/05/2017
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18. Valorization of mining waste from Ouenza iron ore mine (eastern Algeria)
Abstract The present article is devoted to the development of a hematite-poor ore mine in Ouenza, which does not meet the steelmaker's requirements. Significant volumes are stored at the pithead of the mine, and the reserves are estimated at over 100 million tones. This enormous quantity of mining waste occupies an important space and poses a real threat to
REM, Int. Eng. J.. Publicado em: 2017-03
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19. AVALIAÇÃO DOS TEORES DE Pb, Cd, Sn, Co, Hg, Mo E As EM SOLOS DA PENÍNSULA FILDES - ANTÁRTICA
Antarctic Continent is one of the few places that has not been explored at all, but studies show that this place is suffering interference by human activities. Therefore, monitoring of this region becomes very important. After optimization and verification of the methodology, the concentrations of Pb, Cd, Sn, Co, Hg, Mo and As in soil samples collected in th
Quím. Nova. Publicado em: 2016-09
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20. DESENVOLVIMENTO DE UM SISTEMA DE ANÁLISE POR INJEÇÃO EM FLUXO PARA PRÉ CONCENTRAÇÃO DE Cd SOBRE RESINA DE XAD-4 MODIFICADA COM FENILFLUORONA E DETERMINAÇÃO POR ESPECTROMETRIA DE ABSORÇÃO ATÔMICA
Cadmium is considered a potentially toxic element, since it doesn't perform any biological function and is highly cumulative. This element is usually found in environmental samples in very low concentrations. For this reason, there is a necessity to develop methods that allow sufficiently low detection limits. From this perspective, a simple, sensitive, sele
Quím. Nova. Publicado em: 2016-06
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21. The effect of structural enrichment in hatchery tanks on the morphology of two neotropical fish species
Reared fish differ from wild fish in several aspects, including morphology, because they are adapted to captive conditions that are totally different from natural conditions. To minimize the influence of the hatchery environment on the morphology of fish, the use of environmental enrichment through the incorporation of natural designs in captivity, has been
Neotrop. ichthyol.. Publicado em: 02/12/2014
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22. Environmental enrichment restores cognitive deficits induced by experimental childhood meningitis
Objective: To evaluate the influence of environmental enrichment (EE) on memory, cytokines, and brain-derived neurotrophic factor (BDNF) in the brain of adult rats subjected to experimental pneumococcal meningitis during infancy. Methods: On postnatal day 11, the animals received either artificial cerebrospinal fluid (CSF) or Streptococcus pneumoniae suspen
Rev. Bras. Psiquiatr.. Publicado em: 25/07/2014
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23. Performance of free-range chickens reared in production modules enriched with shade net and perches
An experiment was carried out to evaluate the effect of environmental enrichment in a free-range chicken production system on live performance as a function of microclimate, physiological parameters, and performance parameters. Four production modules were divided into four pens with 10 birds each, totaling 60 birds. The following treatments were applied: ac
Rev. Bras. Cienc. Avic.. Publicado em: 2014-03
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24. Development of a new solid phase extraction procedure for selective separation and enrichment of Au(III) ions in environmental samples
Um procedimento de extração em fase sólida (SPE) altamente sensível, seletivo e de baixo custo foi desenvolvido para separação e enriquecimento de íons Au(III) em amostras ambientais previamente a sua detecção por espectrometria de absorção atômica com chama (FAAS). O complexo Au(III)-2-piridina-5-(4-toluil)-1,3,4-oxadiazol (PYTOX) foi quantitati
J. Braz. Chem. Soc.. Publicado em: 2013-10