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| Registros recuperados: 34 | |
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| Guillier, Laurent; Gourmelon, Michele; Lozach, Solen; Cadel-six, Sabrina; Vignaud, Marie-léone; Munck, Nanna; Hald, Tine; Palma, Federica. |
| The partitioning of pathogenic strains isolated in environmental or human cases to their sources is challenging. The pathogens usually colonize multiple animal hosts, including livestock, which contaminate the food-production chain and the environment (e.g. soil and water), posing an additional public-health burden and major challenges in the identification of the source. Genomic data opens up new opportunities for the development of statistical models aiming to indicate the likely source of pathogen contamination. Here, we propose a computationally fast and efficient multinomial logistic regression source-attribution classifier to predict the animal source of bacterial isolates based on ‘source-enriched’ loci extracted from the accessory-genome profiles... |
| Tipo: Text |
Palavras-chave: Environmental contamination; Multinomial logistic regression; Pangenome-wide enrichment analysis; Source attribution; Salmonella Typhimurium.. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00624/73632/73072.pdf |
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| Schmitt,Djalma Eugênio; Comin,Jucinei José; Ceretta,Carlos Alberto; Gatiboni,Luciano Colpo; Tiecher,Tales; Lorensini,Felipe; Heinzen,Janaina; Ambrosini,Vítor Gabriel; Moraes,Marcel Pires de; Brunetto,Gustavo. |
| In vineyards, if phosphate is applied both before planting and at intervals during growth without consideration of technical criteria, the soil P fractions may be increased and their proportions altered. This study was carried out to evaluate the accumulation of P fractions and the parameters of the adsorption isotherm in a sandy Typic Hapludalf soil in vineyards with a history of successive and excessive phosphate fertilization. In December 2010, two vineyards were selected, one 4 and the other 15 years old, in Urussanga, State of Santa Catarina (Brazil). Three trenches were dug in each area and soil was collected from the 0-5, 5-10 and 10-20 cm depth ranges. The soil samples were dried in a forced-air oven, sieved and subjected to chemical analyses, P... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphate fertilization; Phosphorus chemical fractionation; Phosphorus adsorption isotherms; Environmental contamination; Vitis sp. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500015 |
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| Lourenzi,Cledimar Rogério; Ceretta,Carlos Alberto; Cerini,Jackson Berticelli; Ferreira,Paulo Ademar Avelar; Lorensini,Felipe; Girotto,Eduardo; Tiecher,Tadeu Luis; Schapanski,Dênis Eduardo; Brunetto,Gustavo. |
| The application of animal manure to soil can increase phosphorus availability to plants and enhance transfer of the nutrient solution drained from the soil surface or leached into the soil profile. The aim of this study was to evaluate the effect of successive applications of organic and mineral nutrient sources on the available content, surface runoff and leaching of P forms in a Typic Hapludalf in no-tillage systems. Experiment 1 was set up in 2004 in the experimental area of UFSM, in Santa Maria (RS, Brazil). The treatments consisted of: control (without nutrient application) and application of pig slurry (PS), pig deep-litter (PL), cattle slurry (CS), and mineral fertilizers (NPK). The rates were determined to meet the N crop requirements of no-tillage... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic waste; Nutrient release; Environmental contamination; No-tillage system. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200019 |
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| Silva,Laércio S.; Galindo,Izabel C. de L.; Gomes,Romário P.; Campos,Milton C. C.; Souza,Edivan R. de; Cunha,José M. da. |
| ABSTRACT Inadequate and intensive management of soils can promote changes in their chemical attributes and impair the quality of surface and groundwater, especially in hillside areas. Therefore, the aim of this study was to identify possible changes in soil and water chemical composition of hillside areas cultivated with horticulture. For this, chemical attributes of three soil depths (0-10, 10-30, and 30-60 cm) were determined in three hillside positions (upper, middle, and lower thirds) of five hillside and adjacent forest areas, as well as water from reservoirs for agricultural use and human consumption. Compared with the forest area, horticultural areas present soil with lower organic matter content and CEC, but higher values of pH, base saturation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Landscape; Environmental contamination; Management practices; Irrigation water. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000300351 |
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| Brunetto,Gustavo; Comin,Jucinei Jose; Miotto,Alcione; Moraes,Marcel Pires de; Sete,Paula Beatriz; Schmitt,Djalma Eugênio; Gatiboni,Luciano Colpo; Melo,George Wellington Bastos de; Morais,Gildean Portela. |
| ABSTRACT The purpose of this study was to evaluate Cu and Zn migration and fractions in sandy soil of vineyards. In Urussanga (SC), Brazil, soil samples were collected from a 4-year-old and 15-yearold vineyard, and from a forested area. In the soils, the chemical characteristics of Cu and Zn were analyzed by the EDTA method, which determines the fraction available in soil; 3050B method of the USEPA for total concentrations, which represents the pseudo-soil contents in the soil; and chemical fractionation, which estimates soluble fraction, exchangeable fraction, fraction associated with clay minerals, fraction associated with organic matter and residual fraction. The results show that there is accumulation of Cu and Zn in sandy soils cultivated with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Availability; Chemical fractionation; Toxicity; Environmental contamination; Vitisvinifera. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100141 |
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| Brunetto,Gustavo; Benedet,Lucas; Ambrosini,Vítor Gabriel; Comin,Jucinei Jose; Melo,George Wellington Bastos de; Santos,Matheus Ademir dos; Lourenzi,Cledimar Rogério; Loss,Arcangelo; Belli Filho,Paulo; Schmitt,Djalma Eugênio; Couto,Rafael. |
| ABSTRACT The present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 – 0.025 m, 0.025 –0.050 m, 0.05 – 0.10 m, 0.10 – 0.15 m, 0.15 – 0.20 m and 0.20 – 0.40 m depth) were collected in two apple orchards (8 years old and 18 years old), and in a native pasture area adjacent to the orchards. The soil was subjected to analysis of physical and chemical properties and to chemical fractionation of Cu and Zn. The fractions of soluble, exchangeable, organic, residual and total Cu and Zn accumulated in the topsoil (0.0 – 0.025 m) of the orchards, being higher in the orchard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica; Trace elements; Toxicity; Environmental contamination. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200333 |
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| Mattias,Jorge Luis; Ceretta,Carlos Alberto; Nesi,Cristiano Nunes; Girotto,Eduardo; Trentin,Eder Efrain; Lourenzi,Cledimar Rogério; Vieira,Renan Costa Beber. |
| Systematic pig slurry application to crop soils may lead to the accumulation of heavy metals in regions with intensive pig raising. The aim of this study was to evaluate the accumulation of Cu, Zn and Mn in soils under systematic pig slurry application. For this purpose, soil samples were collected from two of the most representative watersheds of Santa Catarina where the predominant activity is pig raising. In each watershed, 12 properties were chosen to evaluate the different systems of pig husbandry (complete cycle (CC), farrowing (FaU) and finishing units (FiU)). Based on information of the producers, soil samples were collected in areas with and without systematic manure application. To determine the total Cu, Zn and Mn content in soils and manure, a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metals; Animal manure; Environmental contamination. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400040 |
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| Bellan,Natalia; Pinto,Terezinha de Jesus Andreoli; Kaneko,Telma Mary; Moretto,Lauro Domingos; Santos Junior,Nelson dos. |
| Expired or unused medication at people's homes is normally disposed of in normal garbage, sewage system or, in certain cases, returned to the public health system. There is still no specific legislation regarding this leftover medication to regulate and orient the handling and correct disposal of medication waste. However, there is defined regulation regarding health services' solid waste. This article has the objective of discussing management models for the disposal of medication waste and the recommendations made by pertinent national and international legislation. By means of literature reviews, the management structure for medication waste of international legislation and the regulations regarding the environment, as well as the national legislation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medications/disposal; Medications/solid waste; Medications/disposal; Sanitary risk; Environmental contamination; National Solid Waste Policy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000300018 |
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| Machado, Aline Belem; Caprara, Juliana Foresti; Franceschi, Itiane Diehl de; Linden, Rafael; Berlese, Daiane Bolzan; Feksa, Luciane Rosa. |
| Hexavalent chromium [Cr (VI)] is a metal utilized in different industries and consequently disposed in the environment. It is a toxic substance and its reduction to trivalent Cr [Cr (III)] generates intermediates, which are responsible for the oxidation of molecules, and cause the oxidative stress. Therefore, the aim of this study was to evaluate if Cr (VI) could induce oxidative stress in Wistar rats. In this study, Wistar rats were chronically exposed to 25 and 50 ppm of potassium dichromate in drinking water for 30 days. The levels of Cr were evaluated in the blood and tissues (liver, kidneys, and lungs). Oxidative stress was determined in the liver, kidneys, and lungs and was evaluated by DFCH, TBA-RS and carbonyl test. Antioxidant enzymes were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioquímica; Meio Ambiente; Contaminação metais pesados Antioxidant enzymes; Environmental contamination; Hexavalent chromium; Oxidative stress. Bioquímica. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43771 |
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| Frade,Verônica Maria Fadário; Dias,Meriellen; Teixeira,Antonio Carlos Silva Costa; Palma,Mauri Sergio Alves. |
| Over the past few decades, a high number of pharmaceuticals have been detected in surface, ground and drinking waters. This contamination comes from domestic sewage, livestock, hospitals and chemical-pharmaceutical industries. Typical examples of these pollutants are the fluoroquinolones - powerful antibiotics used in human and veterinary medicine. The presence of fluoroquinolones in the environment can pose a serious threat to the ecosystem and to human health due to their high consumption globally: in 1998, around 120 tons were produced. Even at low environmental concentrations, antibiotics stimulate bacterial resistance. The consequences of the presence of fluoroquinolones in the environment are not fully understood, but are known to be toxic to plants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fluoroquinolones/waste/environmental impact; Fluoroquinolones/waste/environmental contamination; Environmental contamination; Advanced oxidation processes/wastewater treatment. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000100004 |
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| Arencibia Carballo, G.; Isla Molleda, M.; Pérez Maya, A. A.; Carrodeguas Rodríguez, M. C.; Castillo Espinosa, D.. |
| La Bahía de Nipe está ubicada en la costa nor-oriental de Cuba, provincia de Holguín, a los 20º50’ de latitud norte y los 75º40’ de longitud oeste. Es una de las mayores bahías de bolsa del mundo y la primera de nuestro territorio, con una superficie de 220 Km2 y profundidades medias que oscilan entre 9 y 25 metros. Este inmenso acuatorio tiene un volumen de agua de 1700 millones de metros cúbicos que se recambia en un tiempo aproximado de 10 a 15 días, con una tasa media diaria de recambio del 10% (Romero y Suárez, 1993)(Fig. 1). Esta bahía es un cuerpo de agua productivo, dinámico y saludable, sin embargo presenta contaminación de origen orgánico y nutrientes en las áreas costeras (Suárez et al., 1997 y Arencibia et al., 1999) cercanas al... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental contamination; Bays. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/5777 |
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| Tiecher,Tadeu Luis; Ceretta,Carlos Alberto; Comin,Jucinei José; Girotto,Eduardo; Miotto,Alcione; Moraes,Marcel Pires de; Benedet,Lucas; Ferreira,Paulo Ademar Avelar; Lorenzi,Cledimar Rogério; Couto,Rafael da Rosa; Brunetto,Gustavo. |
| Successive applications of pig slurry and pig deep litter may lead to an accumulation of copper (Cu) and zinc (Zn) fractions in the soil profile. The objective of this study was to evaluate the Cu and Zn forms and accumulation in a Sandy Typic Hapludalf soil after long-term application of pig slurry and deep litter. In March 2010, eight years after initiating an experiment in Braço do Norte, Santa Catarina (SC), Brazil, on a Sandy Typic Hapludalf soil, soil samples were collected from the 0-2.5, 2.5-5.0, 5-10 and 10-15 cm layers in treatments consisting of no manure application (control) and with applications of pig slurry and deep litter at two levels: the single and double rate of N requirement for maize and black oat succession. The soil was dried,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manure; Trace elements; Chemical fractionation; Environmental contamination. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000300028 |
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| Marques,Rosângela Francisca de Paula Vitor; Silva,Antônio Marciano da; Rodrigues,Luciano dos Santos; Coelho,Gilberto. |
| The environmental impact of three different urban solid waste facilities (USWF) on the quality of the surface water. The studied areas were the Campo Belo sanitary landfill (Varões River), the controlled landfill of Santo Antônio do Amparo (Fabiano River), and the closed dump of Elói Mendes (Mutuca River), which are cities located in southern Minas Gerais state, Brazil were evaluated. At each sampling point water samples were collected at five occasions in the raining season (October - March) and in the dry season (April - June) at three sampling points: (P1) upstream the solid waste facility, (P2) downstream nearby the point of influx from the sewage treatment plant in the sanitary landfill, or at the drainage point from the surface flow of the dump and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental contamination; Water quality index; Sanitary landfill; Controlled landfill; Dump. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600010 |
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| Cintra,A.P.R.; Andrade,M.C.G.; Lazarini,M.M.; Assis,D.C.S.; Silva,G.R.; Menezes,L.D.M.; Ornellas,C.B.D.; Figueiredo,T.C.; Cançado,S.V.. |
| ABSTRACT The temperature control in the processing room is one of the major factors associated with the production of safe food with a satisfactory microbiological quality. A total of 288 samples of skinless chicken breast meat were placed in a cutting room, subjected to four different temperatures (12ºC, 14ºC, 16ºC and 18ºC) and collected to evaluate the influence of the room temperature on the microbiological quality during the cutting and boning of chicken breasts. Aerobic mesophilic microorganisms were counted to evaluate the environmental contamination. In addition, coliforms at 35ºC and 45ºC and Staphylococcus spp. were counted, and an analysis for the presence of staphylococcal enterotoxins and Salmonella spp. was performed to determine the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiological quality; Environmental contamination; Chicken breast meat; Cutting room temperature. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300814 |
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| Isla Molleda , M.; Almira, I.; Arencibia Carballo, G.; Reyes, E.; Pérez Maya, A. A.; Carrodeguas, M. C.; Capetillo, N.. |
| La Bahía de Nipe presenta problemas de contaminación y está siendo estudiada con el fin de recuperar este importante recurso pesquero del país. Para lograr este objetivo es necesario crear en los habitantes de los poblados aledaños a la misma, una conciencia medioambiental capaz de inculcar en el hombre el amor por la naturaleza y por quién mejor empezar sino por los niños?. Debido a esto es que dentro del marco de la realización del Proyecto Comunitario Bahía de Nipe, se decidió crear en el poblado de Guatemala, aledaño a la bahía, un Círculo de Interés de Educación Ambiental con alumnos de la Secundaria Básica "Ivo Sanamé", con el objetivo de transmitir la importancia que tiene para el hombre el conocimiento del mundo que lo rodea así como su... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental contamination; Bays; Education. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/5776 |
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| Registros recuperados: 34 | |
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