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Search Results: 1 - 10 of 14213 matches for " ANDREA ANDREOLI "
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Transtorno de estresse pós-traumático em pacientes de unidade de terapia intensiva
Caiuby, Andrea Vannini Santesso;Andreoli, Paola Bruno de Araújo;Andreoli, Sergio Baxter;
Revista Brasileira de Terapia Intensiva , 2010, DOI: 10.1590/S0103-507X2010000100013
Abstract: post-traumatic stress disorder has been detected in patients after treatment in intensive care unit. the main goal of this study is to review the psychological aspects and therapeutic interventions on those patients after their treatment on intensive care unit. thirty eight articles have been included. the prevalence of post-traumatic stress disorder has varied from 17% up to 30% and the incidence from 14% to 24%. the risk factors were: previous anxiety historic, depression or panic, having delusional traumatic memories (derived from psychic formations as dreams and delirium), belief effects, depressive behavior, stressing experiences and mechanical ventilation. high doses of opiates, symptoms caused by sedation or analgesia reduction and the use of lorazepam were related with the increase of delirium and delusional memory. the disorder sintomatology can be reduced with hydrocortisone administration, with daily sedation interruption. no other effectiveness psychological intervention study was found.
Giant cell tumor of the distal ulna: a case report
Daniele Vanni, Andrea Pantalone, Elda Andreoli, Patrizio Caldora, Vincenzo Salini
Journal of Medical Case Reports , 2012, DOI: 10.1186/1752-1947-6-143
Abstract: A 17-year-old Colombian man presented with a painful swelling of the left wrist. After performing an instrumental examination, a diagnosis of distal ulna giant cell tumor was made. The tumor was treated with an intralesional curettage, phenol application and bone grafting.This tumor may have a good prognosis if it is diagnosed early and radically treated. It is important to be aware of atypical cancer localizations in order to perform a proper diagnosis.
Residuos le?osos de gran tama?o en un torrente de la Cordillera de Los Andes, Chile: su funcionalidad e importancia
Andreoli,Andrea; Carlig,Giovanni; Comiti,Francesco; Iroumé,Andrés;
Bosque (Valdivia) , 2007, DOI: 10.4067/S0717-92002007000200001
Abstract: the study analyzed amounts, characteristics and morphological impact of large woody debris (lwd) in tres arroyos torrent of the chilean southern andes draining an old-growth forested basin. all woody debris pieces greater than 10 cm in diameter and 1 m in length were surveyed along a 1.5 km-long stream section presenting a general step-pool/cascade morphology. the total amount of large woody debris within the fluvial corridor was on average 1,500 m3/ha, very high value comparable only to data from old-growth forested basins in the pacific northwest of north america. around two thirds of lwd volume were found in accumulations while half of the lwd elements were located on the active floodplain. as much as 83% of the lwd pieces showed signs of in-stream transport, 13% were directly associated to natural tree falls, and the remaining to landslides and bank erosion. different types of log-jams were observed, some heavily altering channel morphology (log-steps and valley jams), others just lining the channel edges (bankfull bench jams). the percentage of log-steps over the total number of steps is around 22%, whereas the elevation loss due to lwd (log-steps and valley jams) was 27% the total potential energy. finally, 2,000 m3 of sediments were estimated to be stored in the main channel behind lwd structures, corresponding to approximately 150% of the annual basin sediment yield.
The need for a hydromorphological approach to Chilean river management La necesidad de un enfoque hidromorfológico para la gestión de los ríos chilenos
ANDREA ANDREOLI,LUCA MAO,ANDRéS IROUMé,JOSE L. ARUMí
Revista chilena de historia natural , 2012,
Abstract: The manuscript reflects the opinion of the authors about the need for a hydromorphological approach for the management of Chilean rivers. A brief state-of-the-art of the recent scientific advances on hydromorphological approach to river management is presented, as well as a general overview of the conditions of Chilean rivers and the mayor disturbances they suffer. Moreover, the need to take into account both direct and indirect services provided by rivers in the decision making process on river management is underlined. Hydromorphology is claimed to be a main element to be considered while assessing the ecological state of rivers. Understanding how the hydrological and morphological variables interact dynamically is indeed key to assess the presence or absence of dynamic equilibrium, a condition that, in turn, promotes both habitat diversity and self-sustainable aquatic and riparian ecosystems. The authors also emphasized the need for a change of paradigm in current Chilean rivers management practices, by developing a unified framework to assess hydromorphological and ecological river conditions. In addition, the implementation of specific legislation aimed at promoting ecological and geomorphological standards in river management practice, and the strengthening and widening of the academic teaching of fluvial ecology and geomorphology is suggested. El manuscrito refleja la opinión de los autores acerca de la necesidad de aplicar un enfoque hidromorfológico para la gestión de los ríos chilenos. Se presenta una breve rese a de los últimos avances científicos sobre el enfoque hidromorfológico en la gestión de ríos, así como una visión general de las condiciones de los ríos chilenos y sus mayores perturbaciones. Por otra parte, se hace énfasis en la necesidad de incluir en la toma de decisiones los servicios directos como los indirectos proporcionados por los ríos. Se afirma que la hidromorfología es un elemento fundamental a considerar al determinar el estado ecológico de los ríos. La comprensión de cómo las variables hidrológicas y morfológicas interactúan de forma dinámica es sin duda clave para evaluar la presencia o ausencia de un equilibrio dinámico, una condición que, a su vez, fomenta tanto la diversidad de hábitat como el desarrollo sostenible de los ecosistemas acuáticos y ribere os. Los autores concluyen que es necesario cambiar el paradigma actual de gestión aplicado en los ríos chilenos desarrollando una estrategia que permita evaluar las condiciones hidromorfológicas y ecológicas de los ríos. Además, sugieren implementar legislación específi
Residuos le osos de gran tama o en un torrente de la Cordillera de Los Andes, Chile: su funcionalidad e importancia Study on large woody debris in a stream from the Andes Mountains: functionality and importance
Andrea Andreoli,Giovanni Carlig,Francesco Comiti,Andrés Iroumé
Bosque (Valdivia) , 2007,
Abstract: Se registraron la cantidad, características e impacto morfológico de los residuos le osos de gran tama o (large woody debris o LWD) en el torrente Tres Arroyos, situado en la Cordillera de Los Andes, Chile, cuya cuenca alta está cubierta por bosques primarios de los géneros Araucaria y Nothofagus. Se examinaron los residuos le osos de más de 10 centímetros de diámetro y 1 m de longitud, en un tramo de 1,5 km del cauce principal del torrente que presenta una morfología general de step-pool/cascade. La cantidad de LWD en el cauce y sus márgenes inundables fue de 1.500 m3/ha, valor comparable a los registrados en cuencas con bosques antiguos en la costa noroeste de América del Norte. Casi dos tercios del volumen de LWD formaban acumulaciones de troncos y la mitad de ellos se encontraron en las márgenes inundables activas del torrente. El 83% del LWD presentaba se ales de haber sido movilizado por el torrente, el 13% se asociaba a caídas naturales de árboles y el resto a aportes por deslizamientos y erosión de laderas. Se observaron diversos tipos de acumulaciones de troncos que alteraban la morfología del canal y cubrían las márgenes del cauce. Se estimó que las acumulaciones de LWD en el tramo estudiado disipan el 27% de la energía potencial total de la corriente de agua. Finalmente, se estimó en 2.000 m3 el volumen de sedimentos depositados en el cauce principal aguas arriba de cúmulos de LWD, correspondiendo aproximadamente al 150% del aporte anual total de sedimentos sólidos de la cuenca. The study analyzed amounts, characteristics and morphological impact of large woody debris (LWD) in Tres Arroyos torrent of the Chilean Southern Andes draining an old-growth forested basin. All woody debris pieces greater than 10 cm in diameter and 1 m in length were surveyed along a 1.5 km-long stream section presenting a general step-pool/cascade morphology. The total amount of large woody debris within the fluvial corridor was on average 1,500 m3/ha, very high value comparable only to data from old-growth forested basins in the Pacific Northwest of North America. Around two thirds of LWD volume were found in accumulations while half of the LWD elements were located on the active floodplain. As much as 83% of the LWD pieces showed signs of in-stream transport, 13% were directly associated to natural tree falls, and the remaining to landslides and bank erosion. Different types of log-jams were observed, some heavily altering channel morphology (log-steps and valley jams), others just lining the channel edges (bankfull bench jams). The percentage of log-steps over the
Acumulaciones de detritos le osos en un cauce de monta a de Tierra del Fuego: análisis de la movilidad y de los efectos hidromorfológicos LW jams in a mountain stream of Tierra del Fuego: piece movement and hydro-morphological effects analysis
Luca Mao,Sarah Burns,Francesco Comiti,Andrea Andreoli
Bosque (Valdivia) , 2008,
Abstract: Se analizaron los volúmenes de material le oso y las tipologías de acumulaciones observadas en el cauce del torrente Buena Esperanza, uno de los pocos cursos de agua de Tierra del Fuego (Argentina) no afectado por la presencia de castores. Aunque el número de piezas le osas medidas en el cauce (2.300 elementos) fue comparable a lo reportado en otras áreas geográfica-climáticas, se estimó una menor abundancia en términos de volumen total de detritos le osos (121 m3 ha-1) debido al lento crecimiento del bosque de Nothofagus spp. en estas latitudes. El 83% de los detritos le osos se localizó dentro del canal activo, del cual el 75% presentó se ales de haber sido transportado por la corriente, el 6% se asoció a aportes laterales al torrente por deslizamientos y erosión de márgenes, y el resto a residuos de cosecha. Las dimensiones relativamente peque as del material le oso se reflejaron en las tipologías de acumulaciones de troncos individualizadas, prevaleciendo las de tipo mixtas (63%). Se estimó que las acumulaciones mixtas influyen en la morfología del cauce, siendo responsables de la retención de un volumen de 1.750 m3 de sedimentos depositados y de la creación del 30% de las pozas. Finalmente, se identificó una correlación positiva significativa entre los volúmenes de las pozas y la altura de las acumulaciones. Los resultados destacan la importancia hidromorfológica de las acumulaciones le osas, y representan una referencia para la evaluación de los impactos determinados por las colonias de castores en otros ríos de Tierra del Fuego. This work reports on the geomorphic role of large wood pieces and jams in a third order mountain stream located in Southern Tierra del Fuego (Argentina), and draining an old-growth nothofagus forested basin not influenced by beaver damming activity. Even if the in-stream number of wood pieces (2,300) is comparable to that observed in other climatic areas, the slow growth of the nothofagus forest causes a lower wood abundance in terms of volumetric load (121 m3 ha-1). Due to the relatively small dimensions of the large wood pieces located inside bankfull edges (83% of the total surveyed pieces), almost the 70% of them demonstrated to have been transported by runoff and 6% derived from bank erosion or landslides. Wood jams exert a significant influence on the channel morphology, being responsible for the creation of 30% of pools. The geomorphic influence of LW jams is also exerted by a considerable sediment storing capacity (about 1,750 m3). The LW-forced pool volume is strongly and positively correlated to the height of th
Influence of condensation temperature on selected exhaled breath parameters
Matteo Goldoni, Andrea Caglieri, Roberta Andreoli, Diana Poli, Paola Manini, Maria Vettori, Massimo Corradi, Antonio Mutti
BMC Pulmonary Medicine , 2005, DOI: 10.1186/1471-2466-5-10
Abstract: Exhaled breath condensate was collected from 24 healthy subjects at temperatures of -10, -5, 0 and +5 C degrees. Selected parameters (condensed volume and conductivity) and biomarkers (hydrogen peroxide, malondialdehyde) were measured.There was a progressive increase in hydrogen peroxide and malondialdehyde concentrations, and condensate conductivity as the cooling temperature increased; total condensate volume increased as the cooling temperature decreased.The cooling temperature of exhaled breath condensate collection influenced selected biomarkers and potential normalizing factors (particularly conductivity) in different ways ex vivo. The temperature of exhaled breath condensate collection should be controlled and reported.Exhaled breath condensate (EBC) is a biological fluid that mainly consists of water, but also contains small droplets of airway lining fluid. Much of the interest of EBC lies in the fact that its collection is totally non-invasive and does not lead to any discomfort or risk [1]. It has been used to assess inflammatory airway diseases such as asthma [2], chronic obstructive pulmonary disease [3], lung cancer [4], interstitial lung disease [5] and acute respiratory distress syndrome [6], and has recently also been extended to the biological monitoring of workers exposed to cobalt and tungsten [7].EBC contains both volatile and non-volatile substances. Volatile or semi-volatile substances have appreciable vapour pressure at body temperature, and can therefore be breathed out as gases; furthermore, volatile substances in gaseous phase can be dissolved in condensed water during EBC collection depending on their physico-chemical properties [8]. Non-volatile substances, such as salts and proteins, are mainly expired in small droplets, and further diluted with exhaled water vapours [8,9]. It is thought that the droplets are formed as a result of random convective processes, and may not be directly related to water vapour production.This has raised the
Movilidad y reclutamiento de material le?oso de gran tama?o en dos cauces de la Cordillera de la Costa de Chile
Iroumé,Andrés; Ulloa,Héctor; Lenzi,Mario A; Andreoli,Andrea; Gallo,Carolina;
Bosque (Valdivia) , 2011, DOI: 10.4067/S0717-92002011000300006
Abstract: in-stream large wood mobility was studied in segments of the main channels of vuelta de zorra and pichún catchments, located in the coastal mountain range, chile. statistical significant relationships were found only between bankfull channel width and dependent variables associated to some large wood characteristics measured in the channel reaches. this would indicate that large wood length, and not diameter, would regulate the mobility of the wood pieces during high flows. after the winter season of 2009, the 12 and 6.5 % of the wood elements were mobilized in vuelta de zorra and pichún, respectively. the lower percentage in pichún would be associated to the lower bankfull width/mean piece length ratio. a statistical non-significant trend was found between mobilized distance and piece length/mean bankfull width; indicating that distance decreased with increased dimensionless piece length. large wood mobility in the two channels was associated to normal peak flows and could be considered as a minimum mobility rate at annual level. the recruited wood volume was higher than the exported wood volume in both segments, therefore the study period can be considered as an in-stream large wood stocking-period.
Adapta??o transcultural da vers?o brasileira da Escala do Impacto do Evento - Revisada (IES-R)
Caiuby, Andrea Vannini Santesso;Lacerda, Shirley Silva;Quintana, Maria Inês;Torii, Thais Suemi;Andreoli, Sergio Baxter;
Cadernos de Saúde Pública , 2012, DOI: 10.1590/S0102-311X2012000300019
Abstract: the impact of events scale-revised (ies-r) is used to screen for post-traumatic stress disorder (ptsd). the aim of this study was to assess the cross-cultural adaptation of the ies-r. the scale was translated into brazilian portuguese and culturally adapted. reliability and validity were evaluated in 45 individuals divided into three groups of 15 (without ptsd, with ptsd, and treated for ptsd). reliability was evaluated using intraclass correlation coefficient - icc and cronbach's alfa. discriminant validity was evaluated by comparing mean ies-r scores in the three groups. the area under the roc curve (auc) was evaluated to determine cut-offs with higher sensitivity (s) and specificity (e) using the clinical interview (dsm-iv) as reference. the ies-r showed good reliability (icc = 1; alfa from 0.75 to 0.93). the mean ies-r scores (p < 0.05) and roc curve had good discriminant validity for a cut-off of 5.6 (s = 0.80, e = 0.70 and auc = 0.81). the brazilian version of ies-r showed good properties and can be a useful screening tool for ptsd.
Material le oso de gran tama o en dos cuencas de la Cordillera de la Costa de Chile con diferente historia de uso del suelo Large wood in two catchments from the Coastal Mountain range with different land use history
Héctor Ulloa,Andrés Iroumé,Mario A Lenzi,Andrea Andreoli
Bosque (Valdivia) , 2011,
Abstract: El material le oso en los cauces de monta a depende, principalmente, de las características del bosque ribere o que los alimenta. Esta investigación presenta el primer reporte sobre distribución longitudinal, abundancia y la propiedad de atrapar sedimento de fondo, del material le oso en dos cuencas con uso contrastante del suelo, localizadas en la Cordillera de la Costa del sur de Chile. La cuenca Vuelta de Zorra (39o 58` 12 S; 73o 34` 13`` O) está cubierta principalmente por bosque nativo y la Pichún (37o 30` 12`` S; 66o 45` 52``O) ha estado sometida a rotaciones sucesivas de plantaciones forestales. En un segmento de cada cauce se caracterizó la vegetación de ribera, se midió y georreferenció el material le oso y se definió la morfología del canal. La vegetación de ribera en Vuelta de Zorra correspondió a renoval-adulto de aproximadamente 200 a os con área basal de 69 m2 ha-1, y en Pichún a un renoval degradado con área basal de 24 m2 ha-1. Considerando el área de cauce lleno como referencia, el volumen de material le oso en Vuelta de Zorra y Pichún fue 109 y 56 m3 ha-1, respectivamente; los volúmenes de sedimento de fondo atrapado fueron 82 y 30 m3 km-1, respectivamente, y el 70 y 30 % de este sedimento, respectivamente, se asocia a la presencia de material le oso. El volumen de material le oso está asociado al tipo de vegetación de ribera del cauce, el cual es consecuencia del uso histórico del suelo en cada cuenca. Previous researches indicated that in-stream large wood (LW) depended on the characteristics of the riparian vegetation. This is the first study about LW abundance, longitudinal distribution and sediment trapped by large wood structures comparing two stream segments in catchments with contrasting land use, located in the Coastal Mountain Range, Southern Chile. One such catchment (Vuelta de Zorra) is covered mainly by native forests and the other (Pichún) runs under productive plantations. In a stream segment of each catchment the riparian vegetation was characterized, each LW piece was measured and geo-referenced and the channel morphology was defined. Vegetation along the Vuelta de Zorra channel corresponded to an adult second growth forest ca. 200 years old with a basal area of 69 m2 ha-1; while in Pichún, it was a much degraded remnant of old native forests with a basal area of 24 m2 ha-1. Considering channel bankfull area as reference, LW volume at Vuelta de Zorra and Pichún was 109 and 56 m3 ha-1, respectively. Trapped sediment values in the stream segments were 82 and 30 m3 km-1 for Vuelta de Zorra and Pichún, respectively; in bot
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