76 research outputs found
Análisis de la relación existente entre el uso de videojuegos y la práctica de actividad física
New Technologies, and especially video games, are part of the daily life of children. The main objective of this study is to analyze whether the practice of physical activity can reduce the problems generated by the continued use of video games. To this end, a sample of 220 students was analyzed and their use of videogames was studied (through the Questionnaire of Experiences Related to Video Games), the weekly physical activity they performed and whether or not they were federated (through a sheet of self-registration). These data were also analyzed according to gender. Through the SPSS program, the levels of both variables and their relationship were studied. It is concluded that the practice of physical activity reduces the number of students without problems related to video games.Las Nuevas Tecnologías, y en especial los videojuegos, forman parte de la vida diaria de los niños. El objetivo principal de este estudio es analizar si la práctica de actividad física puede reducir los problemas que genera el uso continuado de los videojuegos. Para ello se analizó una muestra de 220 alumnos y se estudió el uso que hacían de los videojuegos (a través del Cuestionario de Experiencias Relacionadas con los Videojuegos), la actividad física semanal que realizaban y si estaban o no federados (a través de una hoja de autoregistro). Estos datos se analizaron también en función del género. A través del programa SPSS se estudiaron los niveles de ambas variables y su relación. Se concluye que la práctica de actividad física reduce la cantidad de alumnos sin problemas relacionados con los videojuegos
Sistema de caliicación para juegos motores en función de la edad
Introduction: Starting from the need to qualify motor games to guide children and adolescents in its use. Aim: Propose the bases for a motor games rating system starting from the videogame rating system. Methodology: Analysis of videogame rating systems. Results and Discussion: We have found different age rating systems for video games based on the descriptors: violence, sex and addictions that modify their impact depending on different modulators. They have many similarities and are widespread throughout the world. Conclusions: The bases for a proposal of a motor games rating system can be established starting from the systems of qualification of videogames, modifying qualification of age, descriptors and modulators in relation to the motor activity.Introducción: Partiendo de la necesidad de calificación de los juegos motores para orientar a los menores y adolescentes en su uso. Objetivo: Proponer las bases para un sistema de calificación, evaluación y clasificación de juegos motores partiendo de los sistemas de calificación de videojuegos. Metodología: Análisis de los sistemas de calificación de videojuegos. Resultados y Discusión: Se han encontrado diferentes sistemas de calificación por edades de videojuegos basadas en los descriptores: violencia, sexo y adicciones que modifican su impacto en función de diferentes moduladores. Tienen bastantes similitudes y están extendidos por todo el mundo. Conclusiones: Se pueden establecer las bases para una propuesta de un sistema de calificación de juegos motores partiendo de los sistemas de calificación de videojuegos, modificando calificación de edad, descriptores y moduladores en relación con la actividad motora
Nursing Students’ Perceptions on Healthcare-Associated Infection Control and Prevention Teaching and Learning Experience in Portugal
Healthcare-associated infections (HAI) are one of the major concerns worldwide, posing
significant challenges to healthcare professionals’ education and training. This study intended to
measure nursing students’ perceptions regarding their learning experiences on HAI prevention and
control. In the first phase of the study, a cross-sectional and descriptive study with a convenience
sample composed of undergraduate nursing students from Portugal, Spain, Poland, and Finland
was conducted to develop the InovSafeCare questionnaire. In the second phase, we applied the
InovSafeCare scale in a sample of nursing students from two Portuguese higher education institutions
to explore which factors impact nursing students’ adherence to HAI prevention and control measures
in clinical settings. In phase one, the InovSafeCare questionnaire was applied to 1326 students
internationally, with the instrument presenting adequate psychometric qualities with reliability
results in 14 dimensions. During phase two, the findings supported that Portuguese nursing students’
adherence to HAI prevention and control measures is influenced not only by the curricular offerings
and resources available in academic settings, but also by the standards conveyed by nursing tutors
during clinical placements. Our findings support the need for a dedicated curricular focus on HAI
prevention and control learning, not only through specific classroom modules, innovative resources,
and pedagogical approaches, but also through a complementary and coordinated liaison between
teachers and tutors in academic and clinical settings.info:eu-repo/semantics/publishedVersio
Bats' Conquest of a Formidable Foraging Niche: The Myriads of Nocturnally Migrating Songbirds
Along food chains, i.e., at different trophic levels, the most abundant taxa often represent exceptional food reservoirs, and are hence the main target of consumers and predators. The capacity of an individual consumer to opportunistically switch towards an abundant food source, for instance, a prey that suddenly becomes available in its environment, may offer such strong selective advantages that ecological innovations may appear and spread rapidly. New predator-prey relationships are likely to evolve even faster when a diet switch involves the exploitation of an unsaturated resource for which few or no other species compete. Using stable isotopes of carbon and nitrogen as dietary tracers, we provide here strong support to the controversial hypothesis that the giant noctule bat Nyctalus lasiopterus feeds on the wing upon the multitude of flying passerines during their nocturnal migratory journeys, a resource which, while showing a predictable distribution in space and time, is only seasonally available. So far, no predator had been reported to exploit this extraordinarily diverse and abundant food reservoir represented by nocturnally migrating passerines
Status of QUBIC, the Q&U Bolometer for Cosmology
The Q&U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of
polarimeter optimized for the measurement of the B-mode polarization of the
Cosmic Microwave Back-ground (CMB), which is one of the major challenges of
observational cosmology. The signal is expected to be of the order of a few
tens of nK, prone to instrumental systematic effects and polluted by various
astrophysical foregrounds which can only be controlled through multichroic
observations. QUBIC is designed to address these observational issues with a
novel approach that combines the advantages of interferometry in terms of
control of instrumental systematics with those of bolometric detectors in terms
of wide-band, background-limited sensitivity.Comment: Contribution to the 2022 Cosmology session of the 33rd Rencontres de
Blois. arXiv admin note: substantial text overlap with arXiv:2203.0894
Trends and outcome of neoadjuvant treatment for rectal cancer: A retrospective analysis and critical assessment of a 10-year prospective national registry on behalf of the Spanish Rectal Cancer Project
Introduction: Preoperative treatment and adequate surgery increase local control in rectal cancer. However, modalities and indications for neoadjuvant treatment may be controversial. Aim of this study was to assess the trends of preoperative treatment and outcomes in patients with rectal cancer included in the Rectal Cancer Registry of the Spanish Associations of Surgeons.
Method: This is a STROBE-compliant retrospective analysis of a prospective database. All patients operated on with curative intention included in the Rectal Cancer Registry were included. Analyses were performed to compare the use of neoadjuvant/adjuvant treatment in three timeframes: I)2006–2009; II)2010–2013; III)2014–2017. Survival analyses were run for 3-year survival in timeframes I-II.
Results: Out of 14, 391 patients, 8871 (61.6%) received neoadjuvant treatment. Long-course chemo/radiotherapy was the most used approach (79.9%), followed by short-course radiotherapy ± chemotherapy (7.6%). The use of neoadjuvant treatment for cancer of the upper third (15-11 cm) increased over time (31.5%vs 34.5%vs 38.6%, p = 0.0018). The complete regression rate slightly increased over time (15.6% vs 16% vs 18.5%; p = 0.0093); the proportion of patients with involved circumferential resection margins (CRM) went down from 8.2% to 7.3%and 5.5% (p = 0.0004). Neoadjuvant treatment significantly decreased positive CRM in lower third tumors (OR 0.71, 0.59–0.87, Cochrane-Mantel-Haenszel P = 0.0008). Most ypN0 patients also received adjuvant therapy. In MR-defined stage III patients, preoperative treatment was associated with significantly longer local-recurrence-free survival (p < 0.0001), and cancer-specific survival (p < 0.0001). The survival benefit was smaller in upper third cancers.
Conclusion: There was an increasing trend and a potential overuse of neoadjuvant treatment in cancer of the upper rectum. Most ypN0 patients received postoperative treatment. Involvement of CRM in lower third tumors was reduced after neoadjuvant treatment. Stage III and MRcN + benefited the most
Measuring the CMB primordial B-modes with Bolometric Interferometry
The Q&U Bolometric Interferometer for Cosmology (QL’BIC) is the first bolometric interferometer designed to measure the primordial B-mode polarization of the Cosmic Microwave Background (CMB). Bolometric interferometry is a novel technique that combines the sensitivity of bolometric detectors with the control of systematic effects that is typical of interferometry, both key features in the quest for the faint signal of the primordial B-modes. A unique feature is the so-called “spectral imaging”, i.e., the ability to recover the sky signal in several sub-bands within the physical band during data analysis. This feature provides an in-band spectral resolution of ∆v/v ~ 0.04 that is unattainable by a traditional imager. This is a key tool for controlling the Galactic foregrounds contamination. In this paper, we describe the principles of bolometric interferometry, the current status of the QU BIC experiment and future prospects
Nanotechnology-based strategies to overcome current barriers in gene delivery
© 2021 by the authors.Nanomaterials are currently being developed for the specific cell/tissue/organ delivery of
genetic material. Nanomaterials are considered as non-viral vectors for gene therapy use. However,
there are several requirements for developing a device small enough to become an efficient genedelivery tool. Considering that the non-viral vectors tested so far show very low efficiency of gene
delivery, there is a need to develop nanotechnology-based strategies to overcome current barriers in
gene delivery. Selected nanostructures can incorporate several genetic materials, such as plasmid
DNA, mRNA, and siRNA. In the field of nanotechnologies, there are still some limitations yet to
be resolved for their use as gene delivery systems, such as potential toxicity and low transfection
efficiency. Undeniably, novel properties at the nanoscale are essential to overcome these limitations.
In this paper, we will explore the latest advances in nanotechnology in the gene delivery field.ST and SBM were supported by EBT CSIC 14102020Peer reviewe
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