Análisis de la consistencia de lluvias y caudales en una cuenca hídrica

En este trabajo se analiza la información hidrometeorológica en un área de 2.800 km², correspondiente a la alta cuenca del río Gualeguay, en la provincia de Entre Ríos. Se estudiaron series simultáneas de 15 altos de precipitación diaria en 7 estaciones de medición cercanas entre sí (una climatológica y seis puestos pluviométricos). A través del análisis comparativo de los valores anuales y mensuales y de las frecuencias de clases de cantidades diarias se encontraron algunas diferencias significativas, atribulóles a defectos en la medición. El error más común es la omisión o acumulación de pequeñas cantidades diarias, pero también se detectan algunas anomalías en los grandes valores de precipitación. A los efectos de su utilización en estudios hidrológicos, se concluyó que las series analizadas son, en general, estadísticamente aceptables para cantidades mayores que 5 mm. Se analizó luego el grado de correlación existente entre la lluvia en la cuenca y el volumen de escorrentía, pudiendo verificarse la correspondencia esperada entre ambas variables.In this work, hydrometeorological data over an area of 2800 km², corresponding to the Gualeguay River basin, were analyzed. Simultaneous 15 years series of dally rainfall in 7 nearby measurement stations (one climatological station and six pluviometric posts) were studied. Through a comparative analysis of the annual and monthly values and class frequencies of daily amounts, some significative differences were found. These differences are assigned to failures in data collection. The commonest error is the omission or accumulation of low daily amounts, but some anomalities in great precipitation values are also detected. For hydrological studies, analyzed series were suposed in general to be statistically acceptable for amounts greater than 5 mm. Then, the degree of correlation between precipitation on the basin and the drained volume was analyzed; the expectable correspondence between both variables was found.Asociación Argentina de Geofísicos y Geodesta

INFLUENCE OF CERIUM ADDITION ON THE SYNTHESIS OF SOLIDS BASED ON PLATINUM SUPPORTED OVER ALUMINA-PILLARED CLAY

The present work shows the preparation and characterization of a set of solids by modification of a natural clay with Al, Ce and Pt. The characterization of the solids by X-ray diffraction (XRD) reveals the insertion of alumina pillars, whereas the subsequent impregnations of the pillared clay with Pt (II) or Ce (IV) do not lead to structural variations that can be observed by XRD. The characterization by nitrogen adsorption indicates that the incorporation of platinum species originates damages in the microporosity of the solid, while the addition of cerium prevents the deterioration of the textural propertie

Empleo de dos arcillas naturales colombianas en la eliminación de iones metálicos en solucion acuosa

Se caracterizaron dos arcillas naturales mediante fisiadsorción de nitrógeno a 77K, análisis químico e intercambio catiónico y se emplearon en la eliminación de iones contaminantes (Cu2+, Al3+ y Fe3+) en solución. Las eficiencias en la eliminación de estos contaminantes indican la potencialidad de dichos materiales en procesos de descontaminación de aguas residuales

Empleo de dos arcillas naturales colombianas en la eliminación de iones metálicos en solucion acuosa

Se caracterizaron dos arcillas naturales mediante fisiadsorción de nitrógeno a 77K, análisis químico e intercambio catiónico y se emplearon en la eliminación de iones contaminantes (Cu2+, Al3+ y Fe3+) en solución. Las eficiencias en la eliminación de estos contaminantes indican la potencialidad de dichos materiales en procesos de descontaminación de aguas residuales

Análise das infecções associadas à assistência à saúde antes e durante a pandemia de COVID-19 em um hospital colombiano

Highlights Gram-negative bacilli prevail in Healthcare-Associated Infections, revealing a microbial landscape shaped by COVID-19. Bacteremia emerges as a high-risk factor, especially impacting immunosuppressed or oncologic patients in our Colombian healthcare institution. Cephalosporin and carbapenem resistance pose a significant hurdle, emphasizing the evolving trends amidst the COVID-19 Impact on Healthcare Infections. Our study underscores the transformative impact of COVID-19 on healthcare infections, spotlighting emerging patterns and challenges in a high-complexity Colombian institution. Introduction: Healthcare-associated infections pose a significant challenge, contributing to hospital morbidity and mortality. Objective: To describe the behavior of Healthcare Associated Infections before and during the pandemic reported to a high-complexity health institution in Colombia. Material and Methods: In our retrospective observational study on Healthcare-Associated Infections (HAIs), we analyzed data from all in-patients diagnosed with HAIs between 2018 and 2020. This included clinical, demographic, microbiological, and microbial susceptibility information collected from the Committee on Nosocomial Infections' prospective database. Data from 391 isolates were obtained using Whonet software for antimicrobial resistance surveillance. Results: We found 504 cases of HAIs (2018-2020) with an overall in-hospital infection rate of 2.55/1000 patient-days. The median age for pediatric patients was 5 years, and for adults, 56 years, with 57% male. The leading admission diagnoses were oncologic disease complications (31%). Bacteremia had a 30-day mortality rate of 13%, predominantly catheter-associated (37%). Gram-negative bacilli, notably  Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa, represented 58% cases of HAI. Discussion: The critical need for specific interventions and antimicrobial management to control HAIs, especially given the challenges posed by the COVID-19 pandemic, is highlighted. Conclusions: This is the first report on HAIs incidence at a tertiary hospital in Bucaramanga, Santander (Colombia). Bacteremia was predominant; 75% of HAIs patients had comorbidities. Gram-negative bacilli prevailed; a notable rise in ICU respiratory infections occurred during the 2020 COVID-19 pandemic. Resistance to cephalosporins and carbapenems was prevalent. How to cite this article: Wintaco Luz M, Quintero-Lesmes Doris C, Vargas-Soler José A, Barrera Diego M, Palacio Laura N, Granados Ulises, Uribe Luis G “Analysis Healthcare Infections before and during of COVID-19 pandemic in a Colombian hospital”. Revista Cuidarte. 2024;15(1):e3624.  http://dx.doi.org/10.15649/cuidarte.3624Introducción: Las infecciones asociadas a la atención en salud (IAAS) representan un reto porque estas contribuyen a la morbilidad y mortalidad hospitalaria.  Objetivo: Describir el comportamiento de las IAAS antes y durante la pandemia, las cuales fueron reportadas a una institución de salud de alta complejidad en Colombia.  Materiales y métodos: En nuestro estudio observacional retrospectivo de las IAAS, analizamos los datos de todos los pacientes hospitalizados que fueron diagnosticados con una IAAS entre 2018 y 2020. Esto incluyó información clínica, demográfica, microbiológica y de susceptibilidad microbiana recabada de la base de datos prospectiva del Comité de Infecciones Nosocomiales. Los datos de 391 aislamientos se obtuvieron utilizando el programa informático Whonet para la vigilancia de la resistencia a los antimicrobianos. Resultados: Encontramos 504 casos de IAAS entre 2018 y 2020 con una tasa global de infección intrahospitalaria de 2,55/1000 pacientes al día. La mediana de edad de los pacientes pediátricos fue de 5 años y la de los adultos de 56 y el 57% de ellos eran varones. Los principales diagnósticos de ingreso fueron complicaciones oncológicas (31%). La bacteriemia tuvo una tasa de mortalidad a los 30 días del 13%, predominantemente asociada al uso de catéter (37%). Los bacilos gramnegativos, sobre todo Klebsiella pneumoniae, Escherichia coli y Pseudomonas aeruginosa, representaron el 58% de los casos de IAAS. Discusión: Se destaca la necesidad crítica de contar con intervenciones específicas y de gestión antimicrobiana para controlar las IAAS, especialmente teniendo en cuenta los retos que planteó la pandemia de Covid-19.  Conclusiones: Este es el primer informe sobre la incidencia de las IAAS en un hospital terciario de Bucaramanga, Santander (Colombia). La bacteriemia predominó y 75% de los pacientes con IAAS presentaban comorbilidades. Predominaron los bacilos gramnegativos y se produjo un notable aumento de las infecciones respiratorias en las UCI durante la pandemia Covid-19 de 2020. Fue prevalente la resistencia a las cefalosporinas y a los carbapenémicos. Como citar este artículo: Wintaco Luz M, Quintero-Lesmes Doris C, Vargas-Soler José A, Barrera Diego M, Palacio Laura N, Granados Ulises, Uribe Luis G “Analysis Healthcare Infections before and during of COVID-19 pandemic in a Colombian hospital”. Revista Cuidarte. 2024;15(1):e3624.  http://dx.doi.org/10.15649/cuidarte.3624Introdução: As infeções associadas aos cuidados de saúde representam um desafio significativo, contribuindo para a morbilidade e mortalidade hospitalar.   Objetivo: Descrever o comportamento das Infecções Relacionadas à Assistência à Saúde antes e durante a pandemia notificadas a uma instituição de saúde de alta complexidade na Colômbia. Material e Métodos: Em nosso estudo observacional retrospectivo sobre Infecções Relacionadas à Assistência à Saúde (IRAS), analisamos dados de todos os pacientes internados com diagnóstico de IRAS entre 2018 e 2020. Isso incluiu informações clínicas, demográficas, microbiológicas e de suscetibilidade microbiana coletadas do Comitê no banco de dados prospectivo de infecções hospitalares. Os dados de 391 isolados foram obtidos utilizando o software Whonet para vigilância da resistência antimicrobiana. Resultados:  Foram encontrados 504 casos de IRAS (2018-2020) com taxa global de infecção hospitalar de 2,55/1.000 pacientes-dia. A idade média para pacientes pediátricos foi de 5 anos, para adultos 56 anos, sendo 57% do sexo masculino. Os principais diagnósticos de admissão foram complicações  de doenças oncológicas (31%). A bacteremia teve uma taxa de mortalidade em 30 dias de 13%, predominantemente   associada ao cateter (37%). Bacilos Gram-negativos, notadamente Klebsiella pneumoniae, Escherichia coli e Pseudomonas aeruginosa, representaram 58% dos casos de IRAS. Discussão: É destacada a necessidade crítica de intervenções específicas e gestão antimicrobiana para controlar as IACS, especialmente tendo em conta os desafios colocados pela pandemia da COVID-19. Conclusões: Este é o primeiro relatório sobre a incidência de IRAS em um hospital terciário em Bucaramanga, Santander (Colômbia). A bacteremia foi predominante; 75% dos pacientes com IRAS apresentavam comorbidades. Prevaleceram bacilos Gram-negativos; um aumento notável nas infecções respiratórias em UTI ocorreu durante a pandemia de COVID-19 de 2020. A resistência à cefalosporina e aos carbapenêmicos foi prevalente. Como citar este artículo: Wintaco Luz M, Quintero-Lesmes Doris C, Vargas-Soler José A, Barrera Diego M, Palacio Laura N, Granados Ulises, Uribe Luis G “Analysis Healthcare Infections before and during of COVID-19 pandemic in a Colombian hospital”. Revista Cuidarte. 2024;15(1):e3624.  http://dx.doi.org/10.15649/cuidarte.362

Synthesis and size evolution of 1D hydroxyapatite crystals under surfactant-free hydrothermal conditions

Hydroxyapatite nanoparticulate materials have received a great deal of scientific attention due to their dental and orthopedic applications but simple strategies to control particle characteristics (e.g., surface area, shape and size distribution) are still needed. Among several hydroxyapatite structures, one-dimensional nanoscale materials such as nanowires, nanorods and nanobelts can be synthesized in the presence of specific surfactants added during synthesis in order to alter the particle growth. This contribution is aim to explore strategies to obtain one dimensional hydroxyapatite crystals without the use of surfactants. Particularly, we study the effect of several variables such as temperature, reaction time and pH on shape and size of hydroxyapatite crystals produced under hydrothermal conditions. The results obtained show the formation of hydroxyapatite nanorods as well as some interesting insights about how to control particle sizes in samples obtained at temperatures between 180 °C and 220 °C. These results have potential benefits at the time of producing one dimensional hydroxyapatite crystals in a simple and not expensive way

Caracterización de mujeres que cometieron homicidio contra su pareja o expareja

16 p.Esta investigación se enmarca en el eje correspondiente a la Psicología Criminológica, en la línea de perfilación y caracterización de hombres y mujeres que cometen homicidio contra sus parejas. El propósito de este estudio fue identificar las características de los casos de mujeres que cometen homicidio o tentativa de homicidio hacia sus parejas heterosexuales. Para lograr el objetivo, se tomaron los modelos propuestos por Garrido y Sobral (2008) y Morales (2003) para recoger y analizar la información a partir de la revisión de los expedientes judiciales de dicha población.Introducción Metodología Resultados Discusión Referencia

Psicometric properties of an instrument for measuring patient’s satisfaction with physical therapy (medrisk) in spanish population: cultural diversity

The Spanish-language versión of the MedRisk Insttrument for Mesauring Partient Satisfaction with Physical therapy Care was validated in a simple of 203 Spanish-speakers patients in New York City. The purpose of this investigation is to adapt this instrument to Spanish population (patients who assist to physical therapy services in Spain); to corroborate if exist a psychometric equivalence and to identify if Spanish patients consider relevant the same dimensions as the preliminary validation. Relevance: At time to used a measurement instrument that has been validated in another country, it is necessary to assure that it is not only reliable and valid to the country where was developed, but also it needs to be appropriated to the patients subjects of the current investigation. Participants: A total of 300 patients of the Hospital of San Juan de Dios del Aljarafe (in Sevilla, Spain) participated in this study (44% men and 56% women between 13 and 93 years old). Methods: It has been done a cross-sectional descriptive study. Data were collected between April 2008 and November 2009.To the patients involved in the research, it was applied the original 20-item version of the MRPS (18 items and two global measures) and not the validated 12-item MRPS (10 items and two global measures). The main investigator randomly selected days during which the data were collected. The sample was taken finally on by convenience: all patients, in these selected days, who assist to medical care once they were done with their prescribed physiotherapy treatment. Analysis: Like Spanish version in New York, factor structure was investigated using item-correlation and exploratory factor analysis. Group-level reliability for single test administration was assessed using the Cronbach alpha. Results: Factor structure: the inter-item correlation matrix revealed that 3 items were not significantly correlated to both of the global measures . These 3 items were not included in the subsequent analysis. Principal components analysis revealed 4 eigenvalues greater than 2.0 explaining 67.93% of the cumulative variance. This suggested a 4-factor solutions. Following varimax rotation, a total of 14 items loaded on four factors were retained. Reliability: The Cronbach alpha was .87 Conclusions: Spanish version of MRPS that was validated with Spanish-speakers patients in New York is similar but not identical to the validation obtained with Spanish Population. In both of them, 9 of the 12 and 14 items finally selected in each other, have a coincidence. In the first one, there is a conclusion of two factors, internal and external. And in our investigation there were obtained 4 dimensions, 2 of them refer to internal factors (respect of the healthcare team and professional behavior of the therapist) and 2 that does it to external factors (adaptation of the center and accessibility)Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech