Relación entre la actividad física de los adolescentes y la de madres/padres

Este estudio tiene como objetivo analizar la relación entre la AF de los padres y madres con la de sus hijas e hijos. Participaron en el estudio 1604 adolescentes (807 portugueses, 797 españoles). Para la recogida de datos sobre práctica de AF se utilizó un cuestionario para los adolescentes y otro para los padres y madres. El efecto de la AF de las madres y de los padres sobre la AF de sus hijas e hijos fue evaluado a través de regresión logística multinomial. Los adolescentes con progenitores físicamente activos practicaban semanalmente más veces AF no organizada (59.4% vs. 37.9%, p<0.001), organizada (39.6% vs. 22.7%, p<0.001) y durante más tiempo (24.8% vs. 17.0%, p=0.010) que los que tenían madre y padre poco activos. Los adolescentes con madres activas y padres poco activos (OR=1.8, 95% IC: 1.3-2.7, p=0.002), y los que tenían ambos activos (OR=2.1, 95% IC: 1.4-3.2, p<0.001) tenían mayor probabilidad de practicar AF no organizada. Tener el padre activo y la madre poco activa (OR=1.6, 95% IC: 1.1-2.1, p=0.024) y tener ambos activos (OR=1.6, 95% IC: 1.1-2.3, p=0.017) estaba asociado a una mayor probabilidad de práctica de AF organizada. El presente estudio demostró la existencia de una relación entre la AF de padres y madres con la AF de sus hijos e hijas.This study aimed to examine the relationship between the physical activity (PA) levels of parents and that showed by their children. A sample comprised of 1604 adolescents (807 Portuguese, 797 Spanish)participated in this study. For PA data collection it was used a questionnaire for parents and another one for their children. Multinomial logistic regression was used to examine the relationship between the PA levels of parents and that showed by their children. Adolescents with active parents practiced more often non-organized PA (59.4% vs. 37.9%, p<0.001), organized PA (39.6% vs. 22.7%, p<0.001) on a weekly basis, and during more time (24.8% vs. 17.0%, p=0.010) than those who had a mother and father less actives. Adolescents with active mothers and less active fathers (OR=1.8, 95% IC: 1.3-2.7, p=0.002), and those who had both active parents (OR=2.1, 95% IC: 1.4-3.2, p<0.001) were more likely to practice non-organized PA. To have active father and less active mother (OR=1.6, 95% IC: 1.1-2.1, p=0.024), and have both active parents (OR=1.6, 95% IC: 1.1- 2.3, p=0.017) were associated with a greater likelihood of practice of organized AF. These results highlight the relationship between parents PA participation and their children PA participation.Este estudo teve como objetivo analisar a relação entre os níveis de atividade física (AF) dos pais e os mostrados pelos respetivos filhos. Participaram no estudo 1604 adolescentes (807 portugueses, 797 espanhóis). Para a recolha de dados referente à AF recorreu-se à aplicação de um questionário para os pais e outro para os filhos. Foi utilizada uma regressão múltipla logística para averiguar a relação entre os níveis de AF dos pais e os mostrados pelos filhos. Adolescentes com pais ativos praticaram AF não organizada mais frequentemente (59,4% vs. 37,9%, p <0,001), AF organizada (39,6% vs. 22,7%, p <0,001) semanalmente e durante mais tempo (24,8% Versus 17,0%, p = 0,010) do que aqueles que tinham uma mãe e pai menos ativos. Adolescentes com mães ativas e pais menos ativos (OR = 1,8, IC 95%: 1,3-2,7, p = 0,002), e aqueles que tiveram ambos os pais ativos (OR = 2,1, IC 95%: 1,4-3,2, p <0,001) eram mais propensos a praticar AF não organizada. Aqueles que tinham pai ativo e mãe menos ativa (OR = 1,6, IC 95%: 1,1-2,1, p = 0,024), e ambos os pais ativos (OR = 1,6, IC 95%: 1,1-2,3, p = 0,017) foram associados a uma maior probabilidade de prática de AF organizada. Esses resultados destacam a relação entre a participação em AF dos pais e a participação de seus filhos em AF

Non-invasive Mechanism Classification and Localization in Supraventricular Cardiac Arrhythmias

[EN] In this study, we investigated the most relevant biomarkers for noninvasive classification and mechanism location in atrial tachycardia (AT), flutter (AFL) and fibrillation (AF). Biomarkers were calculated using noninvasive body surface (BSPM) dominant frequency and phase maps. We used 19 simulations of 567 to 64-lead BSPMs, from which were extracted 32 biomarkers. Biomarker ranking was performed with ANOVA, Kendall and Lasso techniques. The best four biomarkers were identified and used to classify the arrhythmias in all combinations, and the best two used for noninvasive driver localization. Arrhythmia classification accuracy was 94.74%. The feature combination which best distinguish AF from non-AF were mean filament displacement and mean OI, while those that best distinguish AFL from AT were mean and SD of SP distribution. There was good agreement across ranking techniques. Mechanism location accuracy was 78.95%, with the most important biomarkers being percentage SPs within each torso division, and SD of filament histogram cluster area. This study highlights that organization related features well identifies AF and spatial SP distribution discriminate AT from AFL and also it¿s localization.VGM is funded by the European Union's Horizon 2020 research and innovation programme under the Marie Skodowska-Curie grant agreement No. 860974. IS, JAS and JS are supported by grant #2018/25606-2, Sao Paulo Research Foundation (FAPESP).Sandoval, I.; Marques, VG.; Sims, JA.; Rodrigo, M.; Guillem Sánchez, MS.; Salinet, J. (2021). Non-invasive Mechanism Classification and Localization in Supraventricular Cardiac Arrhythmias. 1-4. https://doi.org/10.22489/CinC.2021.2261

The Quaternary plant fossil record from the volcanic Azores Archipelago (Portugal, North Atlantic Ocean): a review

Plant fossils are known from the Azores Islands, yet poorly studied. We present a comprehensive bibliographical review for the archipelago. A first pre-scientific reference dates from late fifteenth century, while the first scientific description was reported in 1821, accounting for trunks in pyroclastic units and silicified plants within hydrothermal deposits. Throughout the second-half of the nineteenth century and the first-half of the twentieth century, prospection by naturalists and geological mapping work, led to the discovery and description of plant fossils in most islands. From the 1970s onwards, the taxonomic interest ceased, and plant fossils were used mainly for 14C dating. Recently, sediment cores from lakes and peatlands were used for palaeoecological reconstructions and to measure anthropogenic impacts. Generally, plant fossils are younger than 50 ka, although older fossils may exist. Azorean plant fossils include somatofossils of leaves, stems, logs and seeds preserved as impressions, compressions, adpressions, permineralizations, lava tree casts and mummifications. The taphonomy of macrofloral elements is usually related to explosive volcanic activity, while palynological record is associated with lake sediments and peat bogs. The persistence in palaeobotanical and palaeopalynological studies will decisively contribute to disentangle the paleodiversity, palaeoecology, and add crucial information on insular plant phylogeny and biogeography.info:eu-repo/semantics/publishedVersio

Fabrication of a 3D combinatorial fibrous-porous scaffold for neural tissue engineering applications

The ability of tissue engineered scaffolds to modulate the response of neural stem cells (e.g. adhesion, proliferation and differentiation) is boosting the unlocking of advanced therapeutic strategies capable of attenuating the effects of traumatic pathologies like spinal cord injury [1]. From the wide range of reported scaffolding concepts, it has been consistently demonstrated that nanofibrous networks and graphene-based porous systems are proficient for guiding neurite outgrowth and inducing specific differentiation patterns, respectively [2].publishe

Desarrollo y crisis en el capitalismo

Revisión realizada en 2012, del desenvolvimiento de la economía mundial y los cambios que se han venido dando en el contexto de la crisis reciente, así como diversos aspectos de las transformaciones en proceso y de la situación económica y social en América Latina. La primera parte está dedicada a la crisis mundial en el marco del funcionamiento del capitalismo y la globalización, y de la permanencia de los factores económicos y financieros que propiciaron su estallido. Se consideran los efectos de la misma según los países y regiones, y se observa su incidencia en los procesos de reconfiguración en marcha, así como las estrategias y políticas seguidas para hacerle frente, sin olvidar las propuestas que se han adelantado para explicarla. En la segunda parte de la obra se analizan los problemas de la región latinoamericana y los de algunos de los países que la integran. Los temas incluyen el desempleo juvenil y el modelo agro-exportador, la inversión extranjera directa y las elecciones presidenciales, entre otros

Biostratigraphic sequence of Portuguese West-basin. Differentiation during the Lias and Dogger.

Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu

Genomic analysis of shiga toxin-containing Escherichia coli O157:H7 isolated from Argentinean cattle

Cattle are the main reservoir of Enterohemorrhagic Escherichia coli (EHEC), with O157:H7 the distinctive serotype. EHEC is the main causative agent of a severe systemic disease, Hemolytic Uremic Syndrome (HUS). Argentina has the highest pediatric HUS incidence worldwide with 12–14 cases per 100,000 children. Herein, we assessed the genomes of EHEC O157:H7 isolates recovered from cattle in the humid Pampas of Argentina. According to phylogenetic studies, EHEC O157 can be divided into clades. Clade 8 strains that were classified as hypervirulent. Most of the strains of this clade have a Shiga toxin stx2a-stx2c genotype. To better understand the molecular bases related to virulence, pathogenicity and evolution of EHEC O157:H7, we performed a comparative genomic analysis of these isolates through whole genome sequencing. The isolates classified as clade 8 (four strains) and clade 6 (four strains) contained 13 to 16 lambdoid prophages per genome, and the observed variability of prophages was analysed. An inter strain comparison show that while some prophages are highly related and can be grouped into families, other are unique. Prophages encoding for stx2a were highly diverse, while those encoding for stx2c were conserved. A cluster of genes exclusively found in clade 8 contained 13 genes that mostly encoded for DNA binding proteins. In the studied strains, polymorphisms in Q antiterminator, the Q-stx2A intergenic region and the O and P γ alleles of prophage replication proteins are associated with different levels of Stx2a production. As expected, all strains had the pO157 plasmid that was highly conserved, although one strain displayed a transposon interruption in the protease EspP gene. This genomic analysis may contribute to the understanding of the genetic basis of the hypervirulence of EHEC O157:H7 strains circulating in Argentine cattle. This work aligns with other studies of O157 strain variation in other populations that shows key differences in Stx2a-encoding prophages

Design of the nutritional therapy for overweight and obese Spanish adolescents conducted by registered dieticians: the EVASYON study

Background: Dietary treatment for obese adolescents should aim to ensure adequate growth and development, by reducing excessive fat mass accumulation, avoiding loss of lean body mass, improving well-being and selfesteem and preventing cyclical weight regain. The aim of this article is to describe the dietary intervention design and the methods used to evaluate nutritional knowledge and behavior in the EVASYON study (Development, implementation and evaluation of the efficacy of a therapeutic programme for overweight/obese adolescents). Methods/design: EVASYON is a multi-centre study conducted in 5 Spanish hospital settings (Granada, Madrid, Pamplona, Santander and Zaragoza), where 204 overweight/obese Spanish adolescents were treated in groups of 9 to 11 subjects over 20 visits. The study was implemented in two stages: an intensive, calorie-restricted period for the first 9 weeks, and an extensive body-weight follow-up period for the last 11 months. A moderate energy intake restriction was applied in the intensive period according to the degree of obesity, on the basis of a balanced diet supplying 50-55% of daily energy as carbohydrates; 30-35% as fats and 10-15% as proteins. In the intensive period, adolescents were prescribed both a fixed full-day meal plan for the first three weeks and a full day meal plan with different food-choices for 6 weeks. Later, adolescents received a flexible meal plan based on food exchanges for the follow-up period until the end of the trial. Data on food intake, dietary and meal-related habits and behavior were collected by means of dietary questionnaires. To analyse nutritional knowledge, adolescents were examined regarding nutrient concepts and food items for a healthy diet with the appropriate tools. Participants were given nutritional information with complementary teaching material, which was available on the EVASYON website (www.estudioevasyon.com). Discussion: The dietary intervention of the EVASYON programme with a moderate calorie restriction for a limi - ted period of time could be a good strategy in treating overweight and obese adolescents and that will be tested further. Moreover, combining fixed plan with free-choice menus may help adolescents and their families to make right decisions for every day meals

A 2D algorithm with asymmetric workload for the UPC conjugate gradient method

This is a post-peer-review, pre-copyedit version of an article published in Journal of Supercomputing. The final authenticated version is available online at: https://doi.org/10.1007/s11227-014-1300-0[Abstract] This paper examines four different strategies, each one with its own data distribution, for implementing the parallel conjugate gradient (CG) method and how they impact communication and overall performance. Firstly, typical 1D and 2D distributions of the matrix involved in CG computations are considered. Then, a new 2D version of the CG method with asymmetric workload, based on leaving some threads idle during part of the computation to reduce communication, is proposed. The four strategies are independent of sparse storage schemes and are implemented using Unified Parallel C (UPC), a Partitioned Global Address Space (PGAS) language. The strategies are evaluated on two different platforms through a set of matrices that exhibit distinct sparse patterns, demonstrating that our asymmetric proposal outperforms the others except for one matrix on one platform.Ministerio de Economía y Competitividad; TIN2013-42148-PXunta de Galicia; GRC2013/055United States. Department of Energy; DEAC03-76SF0009