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au:LOZANO, FRANCISCO JAVIER

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Epidemiología de la leptospirosis en los humedales del sur de España
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Gómez-Martín, María Carmen

; Rodríguez-Benjumeda, Luis Miguel

; de Eguilior-Mestre, María Carmen

; Lozano-Domínguez, María Carmen

; Luque-Márquez, Rafael

; Jódar-Sánchez, Francisco

; Aznar-Martín, Javier

; Donaire-Granado, José Augusto

; Luque-Romero, Luis Gabriel

Gaceta Sanitaria

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2023, Volume 37 elocation 102288

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Objetivo: Conocer si la incidencia de leptospirosis en los capturadores de cangrejo rojo durante el periodo de captura es superior a la de la población general, así como identificar factores de riesgo y estimar los costes sanitarios directos e indirectos asociados a los casos de seroconversión de dicha enfermedad. Método: Este estudio se realizó desde el 1 de julio de 2017 hasta el 31 de marzo de 2018. Se llevó a cabo un estudio de cohortes prospectivo (población expuesta: capturadores de cangrejo rojo; población no expuesta: población general) en el municipio de Isla Mayor (Sevilla, España). Previo consentimiento informado, se invitó a la población al estudio de prevalencia mediante la técnica cualitativa ELISA. Los que tuvieron serología negativa fueron incluidos en el estudio de cohortes. Ambas cohortes se siguieron clínicamente y a los casos sintomáticos se les realizó serología. A los capturadores de cangrejo rojo se les tomó una segunda muestra de suero al final del seguimiento para detectar asintomáticos. La serovariedad se confirmó mediante aglutinación microscópica. Se realizó un análisis descriptivo bivariado y se calcularon la incidencia acumulada y el riesgo relativo. La serología positiva se tomó como variable dependiente. Resultados: Se incluyeron en el estudio 278 personas, de las que 92 constituían la cohorte de capturadores y 186 la de población general. El 46,8% de la muestra eran mujeres, aunque entre los capturadores de cangrejo rojo estas solo representaban el 29,3%. La edad media de la muestra fue de 45,1 (± 16,4) años. Se detectaron nueve seroconversiones: ocho en capturadores de cangrejo rojo y una en población general. Por lo tanto, la incidencia acumulada fue de 8,7% en capturadores de cangrejo rojo y de 0,5% en población general, siendo el riesgo relativo de 16,2 (intervalo de confianza del 95%: 2,1-127,4). El coste total de la asistencia sanitaria y de las pérdidas por enfermedad asociadas a la leptospirosis fue de 1568 € por caso. Conclusiones: La leptospirosis en Isla Mayor está fuertemente asociada a la captura del cangrejo rojo. La incidencia es muy superior a la encontrada en estudios publicados en otros países.

Abstract Objective: To find out whether the leptospirosis incidence rate among red swamp crayfish collectors in the harvesting season is higher than in the general population, and to identify risk factors and assess the direct and indirect health costs associated with leptospirosis seroconversion. Method: This study was carried out between 1 July 2017 and 31 March 2018 in the municipality of Isla Mayor (Seville, Spain). It took the form of a prospective cohort study (exposed population: swamp crayfish collectors; non-exposed population: general population). The population was invited to take part in a prevalence study to be conducted using the ELISA qualitative technique, and informed consent was obtained from those who agreed. Negative serology cases were then included in the cohort study. Both cohorts were monitored clinically and symptomatic cases were serology tested. A second serum sample was taken from the swamp crayfish collectors at the end of the monitoring period to detect asymptomatic cases. Serovars were confirmed by microscopic agglutination testing. A bivariate descriptive analysis was carried out and cumulative incidence and relative risk were calculated, with positive serology being taken as the dependent variable. Results: A total of 278 people were included in the study, of whom 92 made up the swamp crayfish collectors cohort and 186 the general population cohort. Women made up 46.8% of the sample, but only 29.3% of the collectors cohort. The mean age was 45.1 (±16.4) years. Nine cases of seroconversion were detected: eight among swamp crayfish collectors and one in the general population. Overall cumulative incidence was therefore 3.2%: 8.7% in the exposed group and 0.5% in the non-exposed group. Relative risk was 16.2% (95% confidence interval: 2.1-127.4). The total cost of medical assistance and illness-related losses associated with leptospirosis was 1568€/case. Conclusions: Leptospirosis in Isla Mayor is strongly associated with red swamp crayfish collecting. It's incidence here is much higher than that reported in studies published in other countries.

https://doi.org/10.1016/j.gaceta.2023.102288

Epidemiología de la leptospirosis en los humedales del sur de España
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Gómez-Martín, María Carmen

; Rodríguez-Benjumeda, Luis Miguel

; de Eguilior-Mestre, María Carmen

; Lozano-Domínguez, María Carmen

; Luque-Márquez, Rafael

; Jódar-Sánchez, Francisco

; Aznar-Martín, Javier

; Donaire-Granado, José Augusto

; Luque-Romero, Luis Gabriel

Gaceta Sanitaria

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2023, Volume 37 elocation 102288

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

https://doi.org/10.1016/j.gaceta.2023.102288

Multisystem Inflammatory Syndrome in Children (MIS-C) temporally related to COVID-19: the experience at a pediatric reference hospital in Colombia
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Lozano-Espinosa, Diego Alejandro

; Camacho-Moreno, Germán

; López-Cubillos, Juan Francisco

; Díaz-Maldonado, Adriana Soraya

; León-Guerra, Oscar Javier

; Galvis-Trujillo, Diego Mauricio

; Sanguino-Lobo, Roy

; Arévalo-Leal, Oscar Guillermo

; del Castillo, Ana María Eraso-Díaz

; Reina-Ávila, María Fernanda

; Cárdenas-Hernández, Vicky Carolina

; Ivankovich-Escoto, Gabriela

; Tremoulet, Adriana H

; Ulloa-Gutiérrez, Rolando

Revista Paulista de Pediatria

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2023, Volume 41 elocation e2021267

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Descrever as características clínicas e os diferentes fenótipos de crianças com síndrome inflamatória multissistêmica na criança temporalmente relacionada com a COVID-19 (do inglês multisystem inflammatory syndrome in children — MIS-C) e avaliar as condições de risco que favorecem a maior gravidade da doença durante um período de 12 meses em um hospital pediátrico de referência na Colômbia. Métodos: Estudo retrospectivo de 12 meses de observação de crianças menores de 18 anos que cumprem os critérios para o MIS-C. Resultados: Vinte e oito crianças foram apresentadas com os critérios do MIS-C. A idade média era de sete anos, e 54% eram do sexo masculino. Para além da febre (100%) (com início quatro dias antes da admissão), as características clínicas mais frequentes eram gastrointestinais (86%) e mucocutâneas (61%). Quatorze crianças (50%) apresentavam sintomas semelhantes aos de Kawasaki. As anomalias ecocardiográficas mais frequentes foram derrame pericárdico (64%), envolvimento valvar (68%), disfunção ventricular (39%) e anomalias coronárias (29%). Tinham linfopenia 75% das crianças. Todas tinham algum teste de coagulação anormal. A maioria recebeu imunoglobulina intravenosa (89%), glucocorticoides (82%), vasopressores (54%) e antibióticos (64%). Tiveram envolvimento mais grave 61% dos pacientes, que precisaram ser internados em unidade de terapia intensiva (mediana de quatro dias, média de seis dias); os preditores de gravidade foram pacientes com fenótipo inflamatório/ MIS-C (odds ratio — OR 26,5; intervalo de confiança — IC95% 1,4–503,7; p=0,029) e erupção cutânea (OR 14,7; IC95% 1,2–178,7; p=0,034). Dois pacientes (7%) apresentavam síndrome de ativação macrofágica. Conclusões: Alteração da artéria coronária, disfunção ventricular e internação na unidade de terapia intensiva foram frequentes, o que nos alerta sobre a importância da suspeita clínica precoce.

Abstract Objective: This study aimed to describe the clinical characteristics and the different phenotypes of children with multisystem inflammatory syndrome in children (MIS-C) temporally related to COVID-19 and to evaluate the risk conditions that favored a greater severity of the disease during a 12-month period at a pediatric reference hospital in Colombia. Methods: A 12-month retrospective observational study of children under the age of 18 years who met criteria for MIS-C. Results: A total of 28 children presented MIS-C criteria. The median age was 7 years. Other than fever (100%) (onset 4 days prior to admission), the most frequent clinical features were gastrointestinal (86%) and mucocutaneous (61%). Notably, 14 (50%) children had Kawasaki-like symptoms. The most frequent echocardiographic abnormalities were pericardial effusion (64%), valvular involvement (68%), ventricular dysfunction (39%), and coronary artery abnormalities (29%). In addition, 75% had lymphopenia. All had at least one abnormal coagulation test. Most received intravenous immunoglobulin (89%), glucocorticoids (82%), vasopressors (54%), and antibiotics (64%). Notably, 61% had a more severe form of the disease and were admitted to an intensive care unit (median 4 days, mean 6 days); the severity predictors were patients with the inflammatory/MIS-C phenotype (OR 26.5; 95%CI 1.40–503.7; p=0.029) and rash (OR 14.7; 95%CI 1.2–178.7; p=0.034). Two patients had macrophage activation syndrome. Conclusions: Coronary artery abnormalities, ventricular dysfunction, and intensive care unit admission were frequent, which needs to highlight the importance of early clinical suspicion.

https://doi.org/10.1590/1984-0462/2023/41/2021267

Los comienzos de un arquitecto. Crónica del viaje de Sáenz de Oíza por Estados Unidos y México
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Salazar Lozano, María del Pilar

; Rodríguez Rodríguez, Pablo

; García-Requejo, Zaida

Estoa. Revista de la Facultad de Arquitectura y Urbanismo de la Universidad de Cuenca

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jun 2022, Volume 11 N. 21 Pages 132 - 150

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract: Francisco Javier Sáenz de Oíza was a pioneer in Spain in his time. His development as an architect and his teachings were marked by a trip that took him to the United States for almost a year. In 1948, shortly after obtaining his degree, he won the Conde de Cartagena scholarship, which allowed him to be trained in a country little known for most of his compatriots at that time. Thanks to the discovery of the letters that he sent monthly to the San Fernando Academy of Fine Arts, it has been possible to reconstruct his trip step by step, the places he visited, the contacts he made, his research topics, and the encountered difficulties. In this way, it is possible to understand its mark, which allows us to obtain lessons to get the most out of the trips that architecture professionals continue to make around the world.

Resumen: Francisco Javier Sáenz de Oíza fue un pionero en España en su tiempo. Su desarrollo como arquitecto y su docencia quedaron marcados por un viaje que le llevó a recorrer Estados Unidos durante casi un año. En 1948, poco después de haber obtenido el título, ganó la beca Conde de Cartagena, lo que le permitió formarse en un país poco conocido por la mayoría de sus compatriotas. Gracias al hallazgo de las cartas que mensualmente remitía a la Academia de Bellas Artes de San Fernando, se ha podido reconstruir su viaje paso a paso, los lugares visitados, los contactos realizados, sus temas de investigación, las dificultades que se encontró. De esta manera se puede entender la huella que le dejó este viaje, lo cual permite obtener enseñanzas para sacar el máximo rendimiento a los viajes que siguen realizando los profesionales de la arquitectura por el mundo entero.

https://doi.org/10.18537/est.v011.n021.a08 25 downloads

Diseño de sistema zona de bio-retención en el campus de la Universidad Colegio Mayor de Cundinamarca, Bogotá
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Higuera-Osorio, José Fernando

; Gutiérrez-Lozano, Edna Patricia

; Navarro-López, Jaime Alberto

; Sánchez-Moreno, Florinda

; Lagos-Bayona, Francisco Javier

Producción + Limpia

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jun 2022, Volume 17 N. 1 Pages 73 - 87

Abstract: Pt Es En | Text: Pt Es En | PDF: Pt | PDF: Es | PDF: En

Resumo Introdução: as cidades precisam adaptar seus sistemas de drenagem aos desafios provocados pelas inundações cada vez mais recorrentes resultantes de fatores como a mudança climática, a urbanização, a subsidência e as mudanças no uso do solo. Uma resposta adaptativa consiste em estruturas suplementares (SUDS) ao já existente sistema que recolhe pequenas áreas de drenagem e das quais podem ser obtidos benefícios para o controle da quantidade de escoamento, melhoria da qualidade e amenidade dos espaços urbanos. As áreas de bio-retenção são um tipo de SUDS que se adapta à cidade de Bogotá e atende a estes objetivos. Objetivo: realizar o desenho geométrico de um SUDS do tipo zona de bio-retenção envolvendo a flora nativa da savana de Bogotá. Materiais e metodologia: a metodologia do Urban Drainage and Flood Control District -UDFCD da cidade de Denver, EUA, foi utilizada de acordo com as diretrizes da Norma Técnica Critérios para o desenho e construção de SUDS da Empresa de Aqueduto e Esgoto de Bogotá. Para a seleção das plantas, foi levada em conta uma série de condições. Resultados: um desenho geométrico que se adapta ao espaço disponível para o protótipo que atende às recomendações para a cidade de Bogotá. Conclusões: é proposta a utilização da espécie Peperomia galioides, que é uma espécie nativa muito comum nas colinas vizinhas de Bogotá que preenche as condições exigidas.

Resumen Introducción: las ciudades requieren adaptar sus sistemas de drenaje ante los desafíos que plantean los cada vez más recurrentes eventos de inundación derivados de factores como el cambio climático, el fenómeno de urbanización, la subsidencia y los cambios en los usos del territorio. Una respuesta de adaptación consiste en estructuras complementarias (SUDS) al sistema existente que recolectan pequeñas zonas de drenaje y del que se puedan derivar beneficios para el control de la cantidad de escorrentía, el mejoramiento de la calidad y que brinden amenidad a los espacios urbanos. Las zonas de bio-retención son un tipo de SUDS que se adapta a la ciudad de Bogotá y cumple con dichas metas. Objetivo: realizar el diseño geométrico de un SUDS del tipo zona de bio-retención involucrando flora nativa de la sabana de Bogotá. Materiales y Métodos: se utilizó la metodología del Urban Drainage and Flood Control District -UDFCD de la ciudad de Denver, EUA en concordancia los lineamientos de la Norma Técnica Criterios para diseño y construcción de SUDS de la Empresa de acueducto y alcantarillado de Bogotá. Para la selección de plantas se tuvieron en cuenta una serie de condiciones que estas deben cumplir. Resultados: un diseño geométrico que se adapta al espacio disponible para el prototipo que cumple con las recomendaciones para la ciudad de Bogotá. Conclusiones: se propone utilizar la especie Peperomia galioides, la cual es una especie nativa muy común en los cerros circundantes a Bogotá que cumple con las condiciones requeridas.

Abstract Introduction: cities need to adapt their drainage systems to the challenges posed by the increasingly recurrent flood events derived from factors such as climate change, the phenomenon of urbanization, subsidence, and changes in land use. An adaptation response consists of complementary structures (SUDS) to the existing system that collect small drainage areas to control the amount of runoff, improve quality and provide amenity to urban spaces. Bio-retention zones are a type of SUDS that adapts to the city of Bogotá and meets these goals. Objective: make the basic design of a SUDS of the bio-retention zone type involving native flora of the Bogotá savanna. Materials and Methodology: the methodology of the Urban Drainage and Flood Control District -UDFCD of the city of Denver, USA was used in accordance with the guidelines of the Technical Standard Criteria for design and construction of SUDS of the Aqueduct and Sewerage Company of Bogotá. For the selection of plants, a series of conditions that they must meet were considered. Results: a geometric design which adapts to the space available for the prototype that meets the recommendations for the city of Bogotá. Conclusions: It is proposed to use the Peperomia galioides species, a very common native species in the hills surrounding Bogotá that meets the required conditions.

https://doi.org/10.22507/pml.v17n1a5

Low molecular weight heparin is useful in adult COVID-19 inpatients. Experience during the first Spanish wave: observational study
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Gonzalez-Porras, Jose Ramon

; Belhassen-Garcia, Moncef

; Lopez-Bernus, Amparo

; Vaquero-Roncero, Luis Mario

; Rodriguez, Beatriz

; Carbonell, Cristina

; Azibeiro, Raul

; Hernandez-Sanchez, Alberto

; Martin-Gonzalez, Jose Ignacio

; Manrique, Juan Miguel

; Alonso-Claudio, Gloria

; Alvarez-Navia, Felipe

; Madruga-Martin, Jose Ignacio

; Macias-Casanova, Ronald Paul

; García-Criado, Jorge

; Lozano, Francisco

; Moyano, Jose Carlos

; Sanchez-Hernandez, Miguel Vicente

; Sagredo-Meneses, Víctor

; Borras, Rafael

; Bastida, Jose María

; Hernández-Pérez, Guillermo

; Chamorro, Antonio Javier

; Marcos, Miguel

; Martin-Oterino, Jose Angel

Sao Paulo Medical Journal

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feb 2022, Volume 140 N. 1 Pages 123 - 133

Abstract: En | Text: En | PDF: En

ABSTRACT BACKGROUND: The intensity of the thromboprophylaxis needed as a potential factor for preventing inpatient mortality due to coronavirus disease-19 (COVID-19) remains unclear. OBJECTIVE: To explore the association between anticoagulation intensity and COVID-19 survival. DESIGN AND SETTING: Retrospective observational study in a tertiary-level hospital in Spain. METHODS: Low-molecular-weight heparin (LMWH) status was ascertained based on prescription at admission. To control for immortal time bias, anticoagulant use was analyzed as a time-dependent variable. RESULTS: 690 patients were included (median age, 72 years). LMWH was administered to 615 patients, starting from hospital admission (89.1%). 410 (66.7%) received prophylactic-dose LMWH; 120 (19.5%), therapeutic-dose LMWH; and another 85 (13.8%) who presented respiratory failure, high D-dimer levels (> 3 mg/l) and non-worsening of inflammation markers received prophylaxis of intermediate-dose LMWH. The overall inpatient-mortality rate was 38.5%. The anticoagulant nonuser group presented higher mortality risk than each of the following groups: any LMWH users (HR 2.1; 95% CI: 1.40-3.15); the prophylactic-dose heparin group (HR 2.39; 95% CI, 1.57-3.64); and the users of heparin dose according to biomarkers (HR 6.52; 95% CI, 2.95-14.41). 3.4% of the patients experienced major hemorrhage. 2.8% of the patients developed an episode of thromboembolism. CONCLUSIONS: This observational study showed that LMWH administered at the time of admission was associated with lower mortality among unselected adult COVID-19 inpatients. The magnitude of the benefit may have been greatest for the intermediate-dose subgroup. Randomized controlled trials to assess the benefit of heparin within different therapeutic regimes for COVID-19 patients are required.

https://doi.org/10.1590/1516-3180.2021.0098.r1.08062021

El conocimiento didáctico del contenido y su impacto en los conocimientos prácticos de los profesores de Ciencias y en la construcción de conocimientos científicos escolares
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Mosquera-Suárez, Carlos Javier

; Alonso, Maritza Ximena

; García-Supelano, Ana maría

; Marín-Velasco, Astrid Sisleny

; Prada-Murcia, Luis Eduardo

; Rincón-Núñez, Juan Pablo

; Saldaña-Lozano, Luis Santiago

Revista científica

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apr 2021, N. 40 Pages 45 - 62

Abstract: Es En Pt | Text: Es En Pt | PDF: Es | PDF: En | PDF: Pt

Resumen Se presentan algunos resultados obtenidos en el marco del proyecto de investigación titulado “Las prácticas de los docentes de Química en ejercicio y su relación con el desarrollo de actividades científicas escolares”, apoyado por el Centro de Investigaciones y Desarrollo Científico de la Universidad Distrital Francisco José de Caldas. En este se buscó la aproximación a cuestiones teóricas fundamentales para comprender, desde el campo de conocimiento de la didáctica de las Ciencias de la Naturaleza, el modelo del conocimiento didáctico del contenido y su relación, en el campo de la formación de profesores de Ciencias, con el desarrollo del conocimiento práctico en contextos de enseñanza-aprendizaje, con el fin de favorecer el desarrollo de conocimientos científicos escolares.

Abstract In this paper show some results achieved in the research project entitled "Practices of chemistry teachers training and their relationship with the development of scholar scientific activities", supported by Centro de Investigaciones Científicas from the Universidad Distrital Francisco José de Caldas. The approach to fundamental theoretical issues is sought to understand, from the field of knowledge in Teaching of Natural Sciences, the model of Didactic Content Knowledge and its relationship, in the field of science teacher education, with the development of practical knowledge in teaching-learning contexts to promote the development of scholar scientific knowledge.

Resumo Apresentam-se a seguir alguns resultados alcançados no âmbito do projeto de investigação intitulado "As práticas do exercício do professor de química e sua relação com o desenvolvimento da atividade científica escolar", apoiado para o seu desenvolvimento pelo Centro de Investigaciones y Desarrollo Científico CIDC de la Universidade Distrital Francisco José de Caldas. A abordagem de questões teóricas fundamentais procura compreender, a partir do campo do conhecimento da Didática das Ciências Naturais, o modelo de Conhecimento Didático de Conteúdos e a sua relação, no campo da formação de professores de ciências, com os desenvolvimentos de conhecimentos práticos em contextos de ensino - aprendizagem para promover o desenvolvimento do conhecimento científico nas escolas.

https://doi.org/10.14483/23448350.15711 716 downloads

Consenso colombiano de expertos sobre recomendaciones informadas en la evidencia para la prevención, el diagnóstico y el manejo de la lesión renal aguda por SARS-CoV-2/COVID-19
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González, Camilo

; Yama, Erika

; Yomayusa, Nancy

; Vargas, Juan

; Rico, Jorge

; Ariza, Amaury

; Aroca, Gustavo

; Baquero, Richard

; Ramírez, Roberto

; Chacón, Kelly

; Torres, Rodolfo

; Robayo, Adriana

; Peña, Adalberto

; Meza, Adriana

; Molano, Alejandra

; Lizarazo, Alexandra

; Caicedo, Andrea

; Acevedo, Andrés

; Calderón, Angélica

; Zambrano, Betty

; Musso, Carlos Guido

; Lozano, Carlos

; Buitrago, Cristóbal

; Ballesteros, David

; Chacón, Diana

; Vargas, Diana

; Gayón, Diana

; Villafañe, Douglas

; López, Francisco

; Ardila, Freddy

; Pinzón, Guillermo

; Guerrero, Gustavo

; Benavides, Helman

; Villanueva, Ignacio

; Raoch, Ingrid

; Galeano, Javier

; Gordon, Jennifer

; Cáceres, Jimena

; Pulido, Jorge

; Pérez, Jorge

; Contreras, Kateir

; Aristizábal, Leidy

; Valderrama, Luis

; Gómez, María

; Vargas, María José

; Carrascal, Martha

; Rodríguez, Martha

; Guerrero, Mauricio

; Alfaro, Mercedes

; Tobón, Natalia

; García, Paola

; Rodríguez, Paula

; Daza, Rodrigo

; Espitaleta, Zilac

Revista Colombiana de Nefrología

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dec 2020, Volume 7 Suppl. 2 Pages 89 - 117

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

resumen está disponible en el texto completo

Abstract Introduction: Acute kidney injury is a frequent complication in patients with COVID-19 and its occurrence is a potential indicator of multi-organ dysfunction and disease severity. Objective: Develop, through an expert consensus, evidence-based recommendations for the prevention, diagnosis, and management of acute kidney injury in patients with SARS CoV2 / COVID-19 infection. Materials and methods: Based on a rapid systematic review in Embase and Pubmed databases and documents from scientific societies, we made preliminary recommendations and consulted with an expert group through an online tool. Then we defined agreement after at least 70 % consensus approval. Quality evidence was evaluated according to the type of document included. The strength of the recommendations was graded as strong or weak. Results: Fifty clinical experts declared their conflict of interest; the consultation took place between May 2 and 29, 2020. The range of agreement ranged from 75.5 % to 100 %. Recommendations for prevention, diagnosis and management of acute kidney injury in patients with SARS CoV2 infection are presented. Conclusions: Although the good quality information available regarding acute kidney injury in patients with COVID-19 is scarce, the recommendations of clinical experts will guide clinical decision-making and strategies around patients with this complication, guaranteeing care focused on the people, with high quality standards, and the generation of safety, health and wellness policies for multidisciplinary care teams.

https://doi.org/10.22265/acnef.7.supl.2.73 434 downloads

Developing scoring functions to assess soil quality at a regional scale in rangelands of SW Spain
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Fernández, Manuel Pulido

; Keshavarzi, Ali

; Rodrigo-Comino, Jesús

; Schnabel, Susanne

; Contador, Joaquín Francisco Lavado

; Gutiérrez, Álvaro Gómez

; Parra, Francisco Javier Lozano

; González, Jesús Barrena

; Torreño, Alberto Alfonso

; Cerdà, Artemi

Revista Brasileira de Ciência do Solo

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2020, Volume 44 elocation e0200090

Abstract: En | Text: En | PDF: En

ABSTRACT The drawing of maps of soil quality at a large scale is increasingly being more useful to land planners and stakeholders. Nevertheless, it involves different methodological steps from the description of soil profiles in the field until the regional mapping of integrative soil quality index (IQI) values. The development of proper scoring functions is a paramount task for the calculation of these IQI values since every parameter needs to be standardized accordingly and weighting factors are usually estimated by multivariate techniques. The main goal of this study was to map soil quality in the Spanish region of Extremadura (commonly known by its rangelands called dehesas). To do that, i) we gathered information from 194 soil profiles described throughout the region, ii) we calculated the weighting factors of ten meaningful parameters used as indicators by using multivariate techniques (Principal Component Analysis, PCA; and Analytic Hierarchy Process, AHP), and iii) we developed standard scoring functions (SSFs) that represent the singularity of every variable (less is better, more is better). We established upper and lower limits for standardizing the values of each indicator properly. Regarding weighting factors, soil texture was highlighted by the PCA and nutrients by the AHP. Once IQI values were calculated, two regional maps of soil quality were drawn by using interpolation methods (ordinary kriging). The IQI maps showed remarkable spatial differences in soil quality presumably induced by land management. We conclude this methodology could be useful and we encourage other colleagues to test its effectiveness in places where soil data are available.

https://doi.org/10.36783/18069657rbcs20200090 242 downloads

10.

Effect on hyperglycemia and pancreas cells of chaya aqueous extracts from two different regions in streptozotocin-induced diabetes rats
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Guzmán, Eduardo Lozano

; González, José Cruz Calderón

; Flores, Maribel Cervantes

; Carrillo, Ada Sandoval

; Pescador, María Guadalupe Nieto

; Cruz, Francisco Javier Moreno

Brazilian Journal of Pharmaceutical Sciences

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2020, Volume 56 elocation e18782

Abstract: En | Text: En | PDF: En

Cnidoscolus chayamansa is a native plant of the Mayan region, which is also cultivated in other places like northern Mexico, Tunisia and India. Many properties are attributed to Mayan Chaya, such as aid in the control of glycemia in diabetics. Thus this study aimed to evaluate the hypoglycemic effects of chaya aqueous extracts in a model of streptozotisin-induced diabetic Wistar rats. Chaya aqueous extracts were collected from plants cultivated in Quinta Roo (Mayan region) and Durango (northern Mexico), and in this study we compare their effect with metformin (as a control). Additionally, we compared the extracts mass profiles from both regions by high-resolution liquid chromatography coupled to a triple quadrupole tandem mass detector (HPLC-MS/MS QQQ). Finally, a study of the pancreatic tissue was carried out to evaluate the effects of the extracts on the Langerhans islets. Both extracts showed a good hypoglycemic effect after two weeks of treatment, and the Langerhans islets showed a partial recovery due to the effect of the treatment. Although the plants were cultivated at a distance of 2,350 km and under different weather, the compounds found in both did not show significant differences.

https://doi.org/10.1590/s2175-97902019000418782 201 downloads

11.

Índice leuco-glucémico asociado con complicaciones en isquemia cerebral aterotrombótica
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Hernández-Sánchez, Miriam Marcela

; Lozano-Nuevo, José Juan

; Suárez-Cuenca, Juan Antonio

; Mendoza-Portillo, Elizabeth

; Vergara-Orduña, Fernando Iván

; Palacios-Pérez, Elizabeth

; González-Moreno, Francisco Javier

; Villanueva-Domínguez, Jonathan

Medicina interna de México

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feb 2019, Volume 35 N. 1 Pages 39 - 44

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract: BACKGROUND: The glycemia and the determination of serum leukocytes on admission have demonstrated prognostic importance in patients with ischemic cerebral vascular disease (CVD). The leuko-glycemic index (ILG) is recently studied as a prognostic marker, but knowledge about its value is lacking. OBJECTIVE: To evaluate the leuko-glycemic index (ILG) as a prognostic marker of mortality and complications in patients with atherothrombotic ischemic stroke. MATERIAL AND METHOD: A prospective study was conducted on patients with atherothrombotic ischemic vascular disease during the acute phase of the infarction, who were admitted to the Internal Medicine Department of the Ticoman General Hospital from January to December 2017. Clinical and laboratory data were collected, including glycemia and leukogram at admission, from which the ILG was calculated and its prognostic value was evaluated, as well as its relationship with the NIHSS and Rankin scales and/or with the 21-day mortality. RESULTS: There were included 72 patients. Patients with a higher number of complications during hospitalization had higher ILG values (p = 0.02). A value ≥ 900 was obtained as a cut-off point; patients with higher values presented a three times higher probability of complications during hospitalization (odds ratio: 3.02, CI95%: 1.03 to 9.9, p = 0.04), so the ILG was a significant predictor. CONCLUSIONS: Leuko-glycemic index was associated with greater severity of cerebral vascular disease in the NIHSS and Rankin scales, and was associated with intrahospital complications.

Resumen: OBJETIVO: Evaluar el índice leuco-glucémico (ILG) como marcador pronóstico de mortalidad y complicaciones en pacientes con enfermedad vascular cerebral de tipo isquémico aterotrombótico. MATERIAL Y MÉTODO: Estudio prospectivo efectuado en pacientes con enfermedad vascular de tipo isquémico aterotrombótico durante la fase aguda del infarto, que ingresaron entre enero y diciembre de 2017 al servicio de Medicina Interna del Hospital General Ticomán. Se recolectaron datos clínicos y de laboratorio, incluyendo glucemia y leucograma al ingreso, a partir de los cuales se calculó el ILG y se evaluó su valor pronóstico, así como su relación con las escalas de NIHSS y Rankin y con la mortalidad a 21 días. RESULTADOS: Se incluyeron 72 pacientes. Los pacientes con mayor número de complicaciones durante la hospitalización tuvieron valores superiores de ILG (p = 0.02). Se obtuvo un valor ≥ 900 como punto de corte; los pacientes con valores superiores tuvieron tres veces mayor probabilidad de complicaciones durante la hospitalización (razón de momios = 3.02; IC95%: 1.03 a 9.9; p = 0.04), por lo que el índice leuco-glucémico constituyó un predictor significativo. CONCLUSIONES: El índice leuco-glucémico se relacionó con mayor severidad de enfermedad vascular cerebral en las escalas de NIHSS y Rankin, además, se asoció con complicaciones intrahospitalarias.

https://doi.org/10.24245/mim.v35i1.2180 828 downloads

12.

Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion
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López, Alejandro

; Valera, Diego Luis

; Molina-Aiz, Francisco Domingo

; Lozano, Francisco Javier

; Asensio, Carlos

Scientia Agricola

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dec 2017, Volume 74 N. 6 Pages 425 - 435

Abstract: En | Text: En | PDF: En

ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a positive effect on the characteristics of air currents that are related to wind erosion processes. Due to their ease of installation and dismantling, plastic meshes are widely used in areas where they are not required permanently. In our study, the use of a mesh of 13 × 30 threads cm−2 and 39 % porosity resulted in an average reduction of 85 % in face velocity at a height of 0.4 m and a distance of 1 m from the windbreak. The turbulence intensity i increased behind the windbreak because the reduction of mean of air speed on the leeside caused by the flow of air through the windbreak. Fluctuation levels, however, remained stable. The mean values of turbulence kinetic energy k decreased by 65 % to 86 % at a distance of 1 m from the windbreak and at a height of 0.4 m. The windbreak reduces erosion and sediment transportation 2 m downwind (2.9 times the windbreak height). Nevertheless, sediment transportation was not reduced at a height of 1.0 m and the effect of the windbreak was not observed at a distance of 6 m downwind (8.6 m times the windbreak height).

https://doi.org/10.1590/1678-992x-2016-0148 1558 downloads

13.

Lipid profile response to weight loss program in overweight and obese patient is related with gender and age
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Romero-Moraleda, Blanca

; Peinado Lozano, Ana Belén

; Morencos Martínez, Esther

; López-Plaza, Bricia

; Gómez Candela, Carmen

; Calderón Montero, Francisco Javier

Nutrición Hospitalaria

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jun 2015, Volume 31 N. 6 Pages 2455 - 2464

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Introduction: the risk of developing cardiovascular disease (CVD) increases with age, however CVD is markedly higher in men than in no-menopausal women. There are few interventions where compare the different effects to lose weight on lipid profile between men and women. Objective: the aim of this study was to compare the response on the lipid profile by gender after a weight loss program, and determine whether there are differences by age group. Methods: one hundred eighty (96 women and 84 men) overweight and obese participants (BMI 25-34.9 kg/ m²) aged 18-50 years were randomised into treatment groups. The intervention period was 22 weeks (in all cases 3 times/wk of training for 22 weeks and 2 weeks for pre and post evaluation). All subjects followed a hypocaloric diet (25-30% less energy intake). Energy intake, body composition) and blood lipid profile were recorded at baseline and after of treatment. Results: the response of HDL varied between men and women (p = 0.001). While in women it decreased (HDL: -2.94%, p = 0.02), HDL was elevated in men (HDL: 5% p = 0.02). After intervention men achieved decrease significantly LDL values a 6.65% more than women (p = 0.01). For TG concentrations there were significant differences between men and women in baseline however, only men had a significant chance in post-training measured (p = 0.001). TC showed significant differences between men and women in baseline (p = 0.013). After intervention, men and women showed a significant decreased to TC (p = 0.01). Conclusion: men achieve a positive greater change on lipid profile than women. In addition, the favorable lipid profile response decreases with increasing age.

Introducción: el riesgo de desarrollar una enfermedad cardiovascular (ECV) se incrementa con la edad; sin embargo, el riesgo de ECV en edad fértil es mayor en hombres que en mujeres. Son pocas las intervenciones en las que se comparan las diferencias entre hombres y mujeres que un programa de pérdida de peso tiene sobre el perfil lipídico. Objetivo: comprobar el cambio en el perfil lipídico entre hombres y mujeres tras un programa de pérdida de peso, comparando las diferencias por género y categoría de edad. Métodos: ciento ochenta participantes (96 mujeres y 84 hombres) con sobrepeso y obesidad (IMC 25-34.9 kg/m²) con edades comprendidas entre los 18-50 años fueron repartidos de forma aleatoria en los diferentes grupos de intervención. El período de intervención fue de 22 semanas y 2 semanas para la evaluación pre y post. Todos los sujetos siguieron una dieta equilibrada hipocalórica (25- 30% de restricción calórica) y un programa de ejercicio 3 veces/semana. Antes y después de la intervención todos los grupos fueron evaluados de los cambios en el perfil lipídico, la composición corporal y la ingesta diaria. Resultados: hubo diferencias significativas en el cambio de HDL entre hombres y mujeres (p = 0,001). Mientras que en las mujeres disminuyó (HDL: -2,94%, p = 0,02), en los hombres hubo un aumento de la concentración de HDL (HDL: 5% p = 0,02). Después de la intervención los hombres lograron disminuir significativamente el LDL un 6,65% más que las mujeres (p = 0,01). Para concentraciones de TG hubo diferencias significativas entre hombres y mujeres al inicio de la intervención; sin embargo, solo los hombres tuvieron una mejoría significativa tras la intervención (p = 0,001). El TC mostró diferencias significativas entre hombres y mujeres preintervención (p = 0,013). Tras la intervención, los hombres y las mujeres mostraron una significativa disminución de TC (p = 0,01). Conclusión: los hombres obtuvieron un cambio más favorable en las variables del perfil lipídico con respecto a la mujeres. Además, la respuesta al perfil lipídico favorable disminuye con el aumento de la edad.

https://doi.org/10.3305/nh.2015.31.6.8926 478 downloads

14.

Mando a distancia virtual usable para la interacción con la televisión ubicua
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Burón Fernández, Francisco Javier

; Román Peña, Raúl

; García Salcines, Enrique

; Ramírez Uceda, José Miguel

; de Castro Lozano, Carlos

Revista Cubana de Ciencias Informáticas

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sep 2013, Volume 7 N. 3 Pages 74 - 84

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

The Interactive television is already a reality, so it is necessary to create new WAYS of interaction more intuitive and transparent to the end user. In this paper we propose a new interaction model for virtual remote controls using smart phones and tablets. The model follows a user centered design, allowing intuitive and transparent communication between the user and the television in a dual screen environment. In order to measure the degree of usability, the prototypes developed were tested with real users in a context of time relaxing. These sessions were recorded to generate qualitative indicators using empirical observations, surveys and interviews.

La televisión interactiva es ya una realidad, por lo que sea hace necesario crear nuevas formas de interacción más intuitivas y transparentes al usuario final. En el presente trabajo se propone un nuevo modelo de interacción para mandos a distancia virtuales utilizando teléfonos inteligentes (smartphones) y tabletas. El modelo sigue un diseño centrado en el usuario, intuitivo y que permite una comunicación transparente entre el usuario y la televisión en un entorno de doble pantalla. Para medir el grado de usabilidad de los prototipos desarrollados, se realizaron pruebas reales con usuarios en un contexto de tiempo relajado. Estas sesiones fueron grabadas para generar indicadores cualitativos mediante observaciones empíricas, encuesta y entrevistas.

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15.

Cobertura de la violencia y la cultura de la legalidad en los medios fronterizos México-Estados Unidos de Norteamérica
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Martínez Garza, Francisco Javier

; Lozano Rendón, José Carlos

; Rodríguez Elizondo, Fernando Abiel

Anagramas -Rumbos y sentidos de la comunicación-

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dec 2012, Volume 11 N. 21 Pages 21 - 40

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Este trabajo analiza y discute la cobertura noticiosa sobre el crimen organizado, la violencia y la guerra del Gobierno mexicano contra el narcotráfico en ocho periódicos de la región fronteriza México-Texas. El propósito fue identificar el grado en el que la cobertura promueve u obstaculiza los principios de la cultura de legalidad. Con base en el diagnóstico, el trabajo sugiere posibles políticas para que los periodistas, autoridades locales y federales y profesores de escuelas de Periodismo y Comunicación puedan tomar para reforzar la cultura de la legalidad a través de los medios noticiosos. El trabajo se basó en un análisis de contenido de dos semanas de cobertura de ocho periódicos diarios con circulación en la región fronteriza México-Texas: El Diario (Nuevo Laredo), El Mañana (Reynosa), Noreste (Matamoros) y El Norte en el noreste mexicano, y The Laredo Morning Times (Laredo, Texas), McAllen Monitor (McAllen), The Brownsville Herald (Brownsville) y The Express-News (San Antonio) en el sureste de Texas. La unidad de análisis fue la noticia sobre inseguridad, violencia, narcotráfico, corrupción o combate al crimen organizado en ambos lados de la frontera. El trabajo concluye con una discusión sobre las implicaciones de la cobertura actual, así como con recomendaciones puntuales de posibles políticas que los actores involucrados podrían tomar para promover, reforzar y consolidar la cultura de la legalidad en los lectores y ayudar en el establecimiento de bases para una solución a largo plazo del crimen y la violencia en la región.

This research analyzes and discusses the news scope on organized crime, violence, and the war of Mexican government against drug trafficking in eight newspapers of Mexico-Texas boundaries. The purpose was to identify the degree in which the scope promotes or impedes the principles of legality culture. Based on the diagnosis, the research suggests possible policies so that journalists, local and federal authorities, and professors of journalism and communication schools may reinforce legality culture through news. The research was based on the content analysis of two weeks of scope of eight daily newspapers in Mexico-Texas boundaries: Nuevo Laredo. El Mañana (Reynosa), Noreste (Matamoros), El Norte (at the Mexican northeast and the Laredo morning times (Laredo, Texas), McAllen monitor (Macallen), The Brownsville Herald (Brownsville) newspapers, and the Express-News (at the southeast of Texas). The analysis unit was the news about security, violence, drug-trafficking, corruption or fight against organized crime at both sides of the boundary. The research concludes with a discussion about implications of current scope as well as with specific recommendations of possible policies that the involved agents may take in order to promote, reinforce, and consolidate the legality culture in readers and help to establish bases for a long-term solution of crime and violence in the region.

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