Lluvia ácida

Este trabajo trata de destacar la importancia de la educación ambiental en la minimización y mitigación de los efectos negativos de la lluvia ácida sobre los ecosistemas. Se describe en forma sintética los distintos equilibrios físico – químicos que originan esta contaminación a partir de las actividades antropogénicas.This work tries to emphasize the environmental education importance on the minimization and mitigation of the acid rain negative effects on the ecosystems. A synthesis of the different physico – chemical equilibria that originate this contamination starting from the human – related activities, is described.Fil: Quintar, S.Fil: González, P.Fil: Almeida, César Américo.Fil: Oliva González, S.Fil: Mallea, M

El uso del potencial redox en muestras ambientales

El objetivo del presente trabajo fue estudiar la posible contaminación ocasionada por los efluentes vertidos por el Hotel Internacional Potrero de los Funes sobre las aguas provenientes del rebalse del dique Potrero de los Funes, que forman el arroyo Cuchi Corral, usando un parámetros de fácil y rápida medida como es el potencial redox. Los muestreos se realizaron en forma bimestral durante el año 2005 -2006 y en cuatro sitios de muestreo, RD (rebalse del dique a partir del cual se forma el arroyo), EH (efluente del hotel), AC1 y AC2 (ubicados a 20 metros y 900 metros respectivamente de la mezcla del rebalse y efluente de hotel) Se realizaron determinaciones de parámetros físico-químicos (DBO, DQO, OD, pH y potencial redox) utilizando los métodos descriptos en el Standard Methods for Examination of Water and Wastewater. Dada la precisa relación que existe entre materia orgánica (DBO y DQO) y las características redox de un sistema, puede continuarse en el futuro el monitoreo, de este tipo de contaminación en este cuerpo de agua, en forma rápida y simple con la medida del potencial redox.The purpose of this study was to evaluate the stream´s pollution by wastewater from a hotel. The samplings were realized once every two months during the year 2005 to 2006. The studied sites are: RD (dam from which the stream is formed), EH (effluent of the hotel), AC1 and AC2 (located at 20 meters and 900 meters from the mixture of dam and effluent of hotel, respectively. Determinations of BOD, COD, DO, pH and redox potential were carried out using the methods describe in the Standard Methods for Examination of Water and Wastewater. The result showed that exists a relationship between organic matter (BOD and COD) and the characteristic redox of system. In the future, the stream can be monitored with the measure of the potential redox.Fil: Oliva González, María Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Almeida, César Américo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Quintar, Silvya. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química Analítica; ArgentinaFil: Gonzalez, Silvia Patricia. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química Analítica; ArgentinaFil: Mallea, Miguel Angel. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química Analítica; Argentin

Otra primavera

Actividad del proyecto de producción artística CePIAbierto 2018 "Residencias Compositivas y de práctica contemporánea” (RHCD 104/2018). Estreno y única función de esta versión contemporánea de “La Consagración de la Primavera” de Igor Stravinski. La música y la danza formulan un diálogo poético que narra el ritual del encuentro entre la vida y la muerte, un acercamiento entre cuerpos extasiados. Sonidos y danzas de un pasado histórico se reúnen en el escenario que desborda vitalidad del presente efímero que se encarna.Estreno y única función de esta versión contemporánea de “La Consagración de la Primavera” de Igor Stravinski.Fil: Cécere, Pablo. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Argüello, Cecilia. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Behm, Pablo. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Castiglione, Mauro. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Gerchunoff, Nicolás. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Llorens, José María. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Sosa, Ramiro. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Zanotto, Matías. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Maldonado, Soledad. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Oliva, René. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Gazal Chalhub, Octavio. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Seoane, Sol. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: González, Flavio. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Espíndola, Iván. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Sbiroli. Sara. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Rostagno, Fabio. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Zieleniewski, Bárbara. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Sol Rassi, María. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Musso, Andrea. Universidad Nacional de Córdoba. Facultad de Artes; Argentina.Fil: Rodríguez, Ezequiel. Universidad Nacional de Córdoba. Facultad de Artes; Argentina

EstuPlan: Methodology for the development of creativity in the resolution of scientific and social problems

[EN] Creative thinking is necessary to generate novel ideas and solve problems. "EstuPlan" is a methodology in which knowledge and creativity converge for the resolution of scientific problems with social projection. It is a training programme that integrates teachers, laboratory technicians and PhD students, master and undergraduate students which form working groups for the development of projects. Projects have a broad and essential scope and projection in terms of environmental problems, sustainable use of natural resources, food, health, biotechnology or biomedicine. The results show the success of this significant learning methodology using tools to develop creativity in responding to scientific and social demand for problem-solving to transfer academic knowledge to different professional environments. Bioplastics, Second Life of Coffee, LimBio, Algae oils, Ecomers, Caring for the life of your crop and Hate to Deforestate are currently being developed.Astudillo Calderón, S.; De Díez De La Torre, L.; García Companys, M.; Ortega Pérez, N.; Rodríguez Martínez, V.; Alzahrani, S.; Alonso Valenzuela, R.... (2019). EstuPlan: Methodology for the development of creativity in the resolution of scientific and social problems. En HEAD'19. 5th International Conference on Higher Education Advances. Editorial Universitat Politècnica de València. 711-717. https://doi.org/10.4995/HEAD19.2019.9205OCS71171

Role of age and comorbidities in mortality of patients with infective endocarditis

[Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. [Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. [Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. [Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group

Çédille, revista de estudios franceses

Presentació

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

Correction to: Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

The original version of this article unfortunately contained a mistake

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

Effects of arsenate on tobacco hairy root and seedling growth, and its removal

Arsenic (As) is a highly toxic environmental contaminant to which most living organisms are exposed. Plants have evolved several mechanisms to cope with this toxic metalloid; however, these mechanisms are only partially understood. The response of plants to As phytotoxicity is highly complex, with considerable variation among species. In this study, arsenate (As+5) effects on germination and early root development of tobacco (Nicotiana tabacum) seedlings were investigated. Also, As+5 tolerance and removal efficiency of tobacco hairy roots (HRs) and seedlings were assessed and compared. Total seed germination capacity was not affected by 10 to 200 μM As+5, while primary root length and root branching were reduced by As+5 concentrations that were at or above 100 μM. Both systems were able to tolerate As+5 concentrations of 10 μM since no growth inhibition was detected. For higher As+5 concentrations, phytotoxicity increased, but it was mitigated by higher phosphate (Pi) availability. Under the studied conditions, As+5 removal efficiency of HRs greatly exceeded that of seedlings. Further, tobacco HRs were able to accumulate As in their tissues. These results justify further investigations on As tolerance and detoxification mechanisms in tobacco, an easy-to-transform crop species with high biomass, which could allow evaluation of the possible application of wild type or alternatively transgenic tobacco plants for As phytoextraction.Fil: Talano, Melina Andrea. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Wevar Oller, Ana Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gonzalez, Silvia Patricia. Universidad Nacional de San Luis. Facultad de Quimica, Bioquimica y Farmacia. Departamento de Quimica. Area de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Oliva González, María Soledad. Universidad Nacional de San Luis. Facultad de Quimica, Bioquimica y Farmacia. Departamento de Quimica. Area de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Agostini, Elizabeth. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin