152 research outputs found
Characterization of the distribution of water vapour for DInSAR studies on the volcanic island of Tenerife, Canary Islands
Measurements of ground displacement have been carried out on the entire active volcanic island of Tenerife, Canary Islands, by means of classical and advanced DInSAR techniques. The main limiting factor on the accuracy of DInSAR measurements is the distribution of the water vapour in the lower troposphere. Hence, it is yet necessary to perform a detailed spatial and temporal characterization of water vapour to understand, and to be able to carry out a direct computation of, the effect of the tropospheric delay on DInSAR results. In this sense, satellite and balloon data have been analysed to infer the variability in the distribution of water vapour and hence, the robustness of DInSAR results on the island of Tenerife.Peer reviewe
Análisis estadístico del viento a 200 milibares en los Observatorios de Canarias
Ponencia presentada en: 1er Encuentro sobre Meteorología y Atmósfera de Canarias, celebrado en el Puerto de la Cruz, los días 12,13 y 14 de noviembre de 2003. El encuentro estuvo organizado por el Centro Meteorológico Territorial en Canarias Occidental, con la colaboración del Observatorio Atmosférico de Izaña y del Grupo de Física de la Atmósfera de la Facultad de Física (Universidad de La Laguna)El viento a 200 milibares (V200) ha sido propuesto recientemente como un parámetro importante para la
selección y calidad de observatorios astronómicos. En esta contribución presentamos la estadística y
análisis detallados de V200 sobre las Islas Canarias en el periodo 1980-2001 basado en medidas
obtenidas de los archivos del Centro de Diagnóstico Climatológico (NCEPINCAR) y del Centro
Territorial de Canarias Occidental del Instituto Nacional de Meteorología. La alta correlación de /os
resultados para La Palma y Tenerife ratifica la estabilidad del cielo de Canarias, proporcionando una
confirmación independiente de la homogeneidad del cielo en islas oceánicas como Canarias. El
análisis de frecuencias y variabilidad de V200 en un periodo de 22 años sugiere una periodicidad
estacional de este parámetro en nuestras islas, con valores que muestran la excelente calidad de los
cielos canarios para observaciones astronómicas. Como complemento, presentamos una comparación
de valores promedios de V200 en diferentes observatorios astronómicos del mundo
Infection exposure is a causal factor in B-cell precursor acute lymphoblastic leukemia as a result of Pax5-inherited susceptibility
Earlier in the past century, infections were regarded as the most likely cause of childhood B-cell precursor acute lymphoblastic leukemia (pB-ALL). However, there is a lack of relevant biologic evidence supporting this hypothesis. We present in vivo genetic evidence mechanistically connecting inherited susceptibility to pB-ALL and postnatal infections by showing that pB-ALL was initiated in Pax5 heterozygous mice only when they were exposed to common pathogens. Strikingly, these murine pB-ALLs closely resemble the human disease. Tumor exome sequencing revealed activating somatic, nonsynonymous mutations of Jak3 as a second hit. Transplantation experiments and deep sequencing suggest that inactivating mutations in Pax5 promote leukemogenesis by creating an aberrant progenitor compartment that is susceptible to malignant transformation through accumulation of secondary Jak3 mutations. Thus, treatment of Pax5 leukemic cells with specific JAK1/3 inhibitors resulted in increased apoptosis. These results uncover the causal role of infection in pB-ALL development. [Significance]: These results demonstrate that delayed infection exposure is a causal factor in pB-ALL. Therefore, these findings have critical implications for the understanding of the pathogenesis of leukemia and for the development of novel therapies for this disease.J. Hauer has been supported by the German Children’s Cancer Foundation and from the “Forschungskommission” of the medical faculty of the Heinrich Heine University and the “Strategischer Forschungsfond” of the Heinrich Heine University. S. Ginzel has been supported by a scholarship from the Hochschule Bonn-Rhein-Sieg. A. Borkhardt has
been supported by the German Children’s Cancer Foundation and the Federal Ministry of Education and Research, Bonn, Germany. Funding to S.N. Constantinescu from Salus Sanguinis, Fondation contre le cancer Belgium; Interuniversity Attraction Poles IAP, and ARC 10/15-027 is acknowledged. Research in the I. Sánchez-García group is partially supported by FEDER and MINECO (SAF2012-32810 and Red de Excelencia
Consolider OncoBIO SAF2014-57791-REDC), Instituto de Salud Carlos III (PIE14/00066), Junta de Castilla y León (BIO/SA32/14 , BIO/SA51/15,
and CSI001U14), Fundacion Inocente Inocente, and the ARIMMORA
project [European Union’s Seventh Framework Programme (FP7/2007-
2013) under grant agreement no. 282891]. The I. Sánchez-García lab is
a member of the EuroSyStem and the DECIDE Network funded by the
European Union under the FP7 program. A. Borkhardt and I. SánchezGarcía
have been supported by the German Carreras Foundation (DJCLS
R13/26). Research in the C. Vicente-Dueñas group is partially supported
by a “Miguel Servet” Grant (CP14/00082 - AES 2013-2016) from the
Instituto de Salud Carlos III (Ministerio de Economía y Competitividad). Research at C. Cobaleda’s lab was partially supported by FEDER, Fondo
de Investigaciones Sanitarias (PI13/00160 and PI14/00025), and from
an institutional grant from the Fundacion Ramon Areces. A. MartínLorenzo
was supported by FSE-Conserjería de Educación de la Junta de
Castilla y León (CSI001-13).Peer Reviewe
Estilos de vida de los adolescentes escolarizados en Educación Secundaria Obligatoria en la ciudad de Huelva : estudio EVESO
El objetivo primordial del estudio EVESO fue indagar sobre los estilos de vida del alumnado de Educación Secundaria Obligatoria (ESO) de Huelva (España), así como sobre determinadas características contextuales y personales relacionadas con ellos. El estudio, de diseño transversal, fue realizado en otoño de 2020 con una muestra de 900 adolescentes (51,8% varones; edad media 14,14 años). Los datos fueron recogidos mediante un cuestionario (en papel u online) autocumplimentado en aulas elegidas aleatoriamente en 13 centros docentes públicos y privados. En cuanto a la alimentación, el 79,5% del alumnado ingiere menos de tres piezas de fruta al día y el 70,5% consume menos de dos raciones diarias de hortalizas. Otros resultados se refieren a la lectura de libros, la actividad física, el consumo de alcohol, tabaco y cannabis, el uso de internet y las apuestas, así como a la vida en familia y las relaciones escolares, entre otros aspectos
The “DrownSafe” project: assessing the feasibility of a puppet show in teaching drowning prevention to children and parents
Drowning remains a prominent global pediatric health concern, necessitating preventive measures such as educational initiatives for children and caregivers. In this study, we aimed to assess the feasibility and educational effectiveness of an interactive puppet show centered on teaching water safety to children and parents. A 30 min original theater performance, featuring two actors and three puppets (a girl, a crab, and a lifeguard), was conducted. Subsequently, 185 children (aged 4 to 8) and their 160 parents (134 mothers and 26 fathers) participated in this quasi-experimental study. Pre- and post-show tests were administered to evaluate knowledge and behaviors regarding aquatic environments. Prior to the puppet show, 78% of the children exhibited basic aquatic competency. Only 33% considered swimming alone risky. Following the intervention, 81.6% of the children changed their perception of the risks of solo beach activities, showing improved knowledge regarding contacting an emergency number (from 63.2% to 98.9%, p < 0.001). The intervention increased parents’ intention to visit lifeguard-patrolled beaches and improved their CPR knowledge with regard to drowning victims by 58.8%. In conclusion, a drowning prevention puppet show positively impacted children and parents, potentially enhancing safety behaviors during water-related leisure activities, warranting its consideration part of comprehensive drowning prevention strategies.Universidade de Vig
Loss of Pax5 exploits sca1-BCR-ABLp190 susceptibility to confer the metabolic shift essential for pB-ALL
Preleukemic clones carrying BCR-ABLp190 oncogenic lesions are found in neonatal cord blood, where the majority of preleukemic carriers do not convert into precursor B-cell acute lymphoblastic leukemia (pB-ALL). However, the critical question of how these preleukemic cells transform into pB-ALL remains undefined. Here, we model a BCR-ABLp190 preleukemic state and show that limiting BCR-ABLp190 expression to hematopoietic stem/progenitor cells (HS/PC) in mice (Sca1-BCR-ABLp190) causes pB-ALL at low penetrance, which resembles the human disease. pB-ALL blast cells were BCR-ABL–negative and transcriptionally similar to pro-B/pre-B cells, suggesting disease onset upon reduced Pax5 functionality. Consistent with this, double Sca1-BCR-ABLp190+Pax5+/− mice developed pB-ALL with shorter latencies, 90% incidence, and accumulation of genomic alterations in the remaining wild-type Pax5 allele. Mechanistically, the Pax5-deficient leukemic pro-B cells exhibited a metabolic switch toward increased glucose utilization and energy metabolism. Transcriptome analysis revealed that metabolic genes (IDH1, G6PC3, GAPDH, PGK1, MYC, ENO1, ACO1) were upregulated in Pax5-deficient leukemic cells, and a similar metabolic signature could be observed in human leukemia. Our studies unveil the first in vivo evidence that the combination between Sca1-BCR-ABLp190 and metabolic reprogramming imposed by reduced Pax5 expression is sufficient for pB-ALL development. These findings might help to prevent conversion of BCR-ABLp190 preleukemic cells.J. Hauer has been supported by the German Cancer Aid (Project 110997 and Translational Oncology Program 70112951), the German Jose Carreras Foundation (DJCLS 02R/2016), the Kinderkrebsstiftung (2016/17), and the "Elterninitiative Kinderkrebstiftung e.V." S. Ginzel has been supported by a scholarship of the Hochschule Bonn-Rhein-Sieg. M. Muschen is an HHMI Faculty Scholar (HHMI- € 55108547) and supported by NIH/NCI through an Outstanding Investigator Award (R35CA197628, R01CA137060, R01CA157644, R01CA172558, R01CA213138) to M. Muschen, a Wellcome Trust Senior Investigator Award, € the Leukemia and Lymphoma Society, the Norman and Sadie Lee Foundation (for Pediatric Cancer, to M. Muschen), and the Dr. Ralph and Marian € Falk Medical Research Trust (to M. Muschen), Cancer Research Institute € through a Clinic and Laboratory Integration Program grant (to M. Muschen) € and the California Institute for Regenerative Medicine (CIRM) through DISC2-10061. A. Borkhardt has been supported by the German Children's Cancer Foundation and the Federal Ministry of Education and Research, Bonn, Germany. Research in I. Sanchez-García's group is partially supported by FEDER and by MINECO (SAF2012-32810, SAF2015-64420-R, and Red de Excelencia Consolider OncoBIO SAF2014-57791-REDC), Instituto de Salud Carlos III (PIE14/00066), ISCIII- Plan de Ayudas IBSAL 2015 Proyectos Integrados (IBY15/00003), by Junta de Castilla y Leon (BIO/SA51/15, CSI001U14, UIC-017, and CSI001U16), Fundacion Inocente Inocente and by the ARIMMORA project [European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 282891]. I. Sanchez-García's lab is a member of the EuroSyStem and the DECIDE Network funded by the European Union under the FP7 program. A. Borkhardt and I. Sanchez-García have been supported by the German Carreras Foundation (DJCLS R13/26). Research in C. Vicente-Duenas's ~ group is partially supported by FEDER, Ministerio de Economía y Competitividad ("Miguel Servet" Grant - CP14/00082 - AES 2013-2016) and (PI17/00167) from the Instituto de Salud Carlos III. A. Martín-Lorenzo and G. Rodríguez-Hernandez were supported by FSE-Conserjería de Educacion de la Junta de Castilla y Leon (CSI001-13 and CSI001-15, respectively). F. Auer was supported by a Deutsche Forschungsgemeinschaft (DFG) fellowship (AU 525/1-1)
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