585 research outputs found
Análisis de los patrones motores durante el juego en minibásquet
En baloncesto, el patrón de actividad de jugadores adultos, tanto masculinos como femeninos,
ha sido estudiado, pero no existen estudios que hayan centrado su atención en el análisis de los
desplazamientos de los jugadores de categorías de iniciación deportiva. Tener el conocimiento
de las demandas físicas de este deporte permitiría la creación de programas de entrenamiento
más acordes con las características de los niños a estas edades. El objetivo de este trabajo fue
analizar descriptivamente la carga física que experimentan los jugadores durante el juego en
los entrenamientos en la categoría alevín (M = 11,25 años; peso: M = 38,7; DE = 9,44 Kg;
Altura: M = 1,43 m; DE = 0,08; IMC: M = 18,7; DE = 3,14), mediante el análisis por sistema
de vídeo. En el estudio participaron un total de 12 jugadores, y se analizó un juego completo
que se disputó durante un torneo amistoso. Los resultados obtenidos certificaron que el minibásquet
es una especialidad deportiva intermitente donde la tasa de trabajo-descanso fue de
1:1,3. La aplicación de tareas, durante el entrenamiento, que reproduzcan la intensidad del
juego durante cortos periodos de tiempo (no superiores a un minuto) aseguraría la adaptación
del entrenamiento
Polygenic analysis of ammonia-oxidizing bacteria using 16S rDNA, amoA, and amoB genes
Finding a unique molecular marker capable of quickly providing rigorous and useful phylogenetic information would facilitate assessing the diversity of ammonia-oxidizing bacteria in environmental samples. Since only one of several available markers can be used at a time in these kinds of studies, the 16S rDNA, amoA and amoB genes were evaluated individually and then compared in order to identify the one that best fits the information provided by the composite dataset. Distance-based neighbor-joining and maximum parsimony trees generated using the sequences of the three mentioned genes were analyzed with respect to the combined polygenic trees. Maximum parsimony trees were found to be more accurate than distance-based ones, and the polygenic topology was shown to best fit the information contained in the sequences. However, the taxonomic and phylogenetic information provided by the three markers separately was also valid. Therefore, either of the functional markers (amoA or amoB ) can be used to trace ammonia oxidizers in environmental studies in which only one gene can be targeted. [Int Microbiol 2005; 8(2):103-110
Tacit knowledges, mainstreaming touristic and local development. The example of a desolate city and in restructuring process: Lorca (Murcia Region, Spain)
La ciudad de Lorca (Región de Murcia, España) sufrió cuantiosos daños el pasado 11 de mayo de
2011, cuando dos terremotos afectaron a esa localidad ocasionando 8 víctimas mortales, cientos de heridos e
innumerables daños materiales. Desde entonces se han emprendido numerosos proyectos de rehabilitación
urbana y patrimonial. En 2014, el Grupo de Investigación “Dinámicas Territoriales, Análisis y Ordenación”,
de la Universidad de Murcia, consigue financiación de la Fundación Séneca (Agencia de Ciencia y Tecnología
de la Región de Murcia) para desarrollar el Proyecto de Investigación “El turismo cultural en la revitalización
del patrimonio histórico de Lorca: actores y estrategias”. Conscientes de que la rehabilitación exige una
revitalización en paralelo, capaz de originar una positiva y completa gentrificación, se plantea el análisis de las
relaciones e interdependencias entre turismo, patrimonio, ciudades históricas y desarrollo local.The town of Lorca (Murcia, Spain) was badly damaged last May 11, 2011, when two earthquakes
hit the city causing eight deaths, hundreds of injuries and countless material damage. Since then numerous
projects of urban rehabilitation and of heritage have been undertaken. In 2014, the Research Group
“Territorial Dynamics, Analysis and Management”, of the University of Murcia, gets funding from the
Seneca Foundation (Agency for Science and Technology in the Region of Murcia) to develop the research
project “Cultural tourism in the revitalization of the historical heritage of Lorca: actors and strategies”. We
are aware that rehabilitation requires a revitalization in parallel, capable of causing a positive and complete
gentrification, and therefore we propose the analysis of the relationships and interdependencies between
tourism, heritage, historic towns and local development
Inherent antibacterial activity and in vitro biocompatibility of hydrophilic polymer film containing chemically anchored sulfadiazine moieties
Microbial colonisation of synthetic materials is a great concern in many fields, e.g., in implant surgery and medical devices; therefore biocompatible hydrophilic organic materials with inherent antimicrobial properties are of current research interest. In this work, we describe the preparation of antibacterial and biocompatible polymeric film based on N-vinyl-2-pyrrolidone (VP) and 2-hydroxyethyl acrylate (HEA), using ethyleneglycol dimethacrylate (EGDMA), and synthetic acrylic monomer containing sulfadiazine chemically anchored. The synthesised polyvinylpyrrolidone (PVP)-based films were characterized by different techniques (1H and 13C NMR, ATR-FTIR, SEM, and TGA). In this study, the biophysical responses of bacteria and L929 cells towards the prepared materials as model device surfaces were evaluated. The membrane that contains the anchored sulfadiazine moiety showed excellent antibacterial activity against Escherichia coli as well as good biocompatibility. Based on the experimental results, this material is a good candidate for medical applications as a biomaterial.Spanish Ministerio de Economía y Competitividad-Feder
(MAT2014-54137-R and MAT2012-31709) and by the Consejería de Educación – Junta de Castilla y León – Feder (BU061U16
Test de velocidad en minibásquet: estudio piloto
A pesar del aumento de la participación en el deporte de iniciación en minibásquet, se mantiene la carencia del conocimiento de las necesidades físicas y fisiológicas que este deporte tiene sobre los jugadores. La información que se puede obtener del análisis del tiempo-movimiento puede resultar muy útil para desarrollar planes de acondicionamiento específicos a partir del patrón físico. La información proporcionada por el índice trabajo-pausa, la duración de los períodos de recuperación, así como también la cantidad de cambios de dirección y desplazamientos específicos, deberían permitirle al entrenador elaborar una planificación adecuada a los deportistas.
No obstante, los estudios de análisis del tiempo-movimiento tienen varias limitaciones, en su mayoría relacionadas con la validez y la fiabilidad de las mediciones de las velocidades de desplazamiento. Para hacer frente a estas inquietudes es posible que los investigadores necesiten utilizar categorías de patrones de desplazamiento más constantes y utilizar definiciones más claras y objetivas para cada una de estas categorías.
El propósito de este artículo es presentar un test de velocidad, para realizar al principio de la temporada, con la finalidad de obtener información que ayude a determinar el patrón de actividad durante el juego en estas edades. Este test de velocidad fue realizado en un equipo de minibásquet masculino de la categoría alevín, posibilitando una optimización de los programas de entrenamiento
Laser fetoscopy ablation for twin–twin transfusion syndrome may reduce the risk of ROP
Profesor contratado doctor con plaza vinculada al Hospital Universitario San Cecilio de Granada
Grupo de Investigación RICORS Enfermedades Inflamatorias; RD21/0002/0011,Purpose: Twin–twin transfusion syndrome (TTTS) is a condition wherein
monochorionic twins share a common placenta with placental anastomoses
between the two foetal circulations. Most infants who survive TTTS are born
prematurely. This study aimed to determine whether fetoscopic laser ablation
(FLA) can reduce the risk of retinopathy of prematurity (ROP) and whether
TTTS was a risk factor for ROP.
Methods: This single-centre,
retrospective, comparative study included 32
monochorionic twins with TTTS matched for gestational age, birthweight and
sex to premature twins and singletons without TTTS (n = 68; twins, n = 34; and
singletons, n = 34) born between 2003 and 2022. A single ophthalmologist recorded
the fundus findings. FLA was performed using Solomon's technique to
separate the vascular systems of the twins with TTTS.
Results: The gestational age and weight of premature infants with TTTS treated
with FLA were significantly higher than those of untreated infants (p = 0.001
and p = 0.001, respectively); however, the hyaline membrane grade was lower
(p = 0.004). A significant increase in weight (g/day) (p = 0.002) and lesser avascular
area in the peripheral temporal retina (p = 0.045) was observed at postnatal
week 4. The risk of ROP in the FLA group was 2.6 times (13.3% vs. 35.3%) lower
than that in the non-FLA
group; however, this difference was not significant.
The incidence of any stage of ROP (25% vs. 18%) and treatment for ROP type 1
(6.25% vs. 5.9%) did not differ significantly between monochorionic twins with
TTTS and premature infants without TTTS.
Conclusion: The gestational age of premature infants with TTTS treated with
FLA was higher than that of untreated infants. Moreover, a reduction in complications
of prematurity was also observed. Laser fetoscopy in twin–twin
transfusion syndrome may reduce the risk of ROP, but the difference was not
statistically significant in this small study.Universidad de Granada aporta fondos para publicación del artículo en acceso abierto (Funding for open access charge): Universidad de Granada /CBUA. Acuerdo Universidad de Granada con Wiley 2023
Examining the psychometric properties of the burnout clinical subtype questionnaire (BCSQ-12) in secondary school teachers
Based on Farber’s burnout proposal, the first aim of this study was to examine the psychometric properties of the short version of the Burnout Clinical Subtype Questionnaire (BCSQ-12) in secondary school teachers. The second aim of the study was to examine possible differences in the burnout subtypes in terms of gender, type of school, and teaching experience. Two different samples of 584 (M¿=¿45.04; 43% males) and 106 (M¿=¿45.50; 40% males) secondary school teachers participated in the study. Results obtained from both the exploratory structural equation modeling (ESEM) and the confirmatory factor analysis (CFA) supported the three-factor structure of the BCSQ-12, comprised of overload, lack of development, and neglect. Further, the BCSQ-12 showed adequate composite reliability. The negative relationships between the three-factor structure of burnout, teachers’ basic psychological need satisfaction, and teachers’ job satisfaction provide evidence of the nomological validity of BCSQ-12. Finally, female teachers, state school teachers, and experienced teachers reported a greater risk of suffering one or more of these three burnout subtypes. Theoretical, methodological, and practical contributions of the BCSQ-12 are discussed, highlighting the importance of assessing the three burnout subtypes separately
Mating structure of the blue and red shrimp, Aristeus antennatus (Risso, 1816) characterized by relatedness analysis
Understanding life history variation and strategies is crucial for stock assessment and fisheries management due to the direct effects on population dynamics, effective population size, sex-ratios, levels of inbreeding, and relatedness among individuals. Aristeus antennatus (En ─ Blue and red shrimp; Fr ─ Crevette rouge; Sp ─ Gamba rosada) is one of the most exploited demersal resources in the Western Mediterranean Sea. However, information regarding the mating system and mate choice preferences remains largely unknown. Advances in molecular genetic markers and methods of inferring biological relationships among individuals have facilitated new insights into the reproductive dynamics of the species in the wild. Here, we used microsatellite markers to examine the A. antennatus mating system and putative mate choice preferences. Our results provided clear evidence of polyandry and polygyny. Relatedness analyses, together with FST and DAPC values showed females exhibited a mating bias towards unrelated males. Mating males were inferred from spermatophores and suggested males were sympatric with females and were also from other spawning grounds. Our findings provided the first description of the reproductive behavior of blue and red shrimpThis work was supported by a grant from Spanish Ministerio de Economia y Competitividad (CTM2014-54648-C2-2-R) to MIR. LP benefited from predoctoral fellowship from the Universitat de Girona (BR2014)S
Sistema de gestión de calidad y certificación ISO 9001:2008-Limitantes y desafíos para las Pymes
La implementación de un Sistema de Gestión de Calidad (SGC) incrementa la calidad de productos y/o servicios, añade valor a los procesos, permite la optimización de variables productivas y mejora la posición competitiva de las empresas. Sin embargo, las pymes reflejan complejidad en la implantación de este sistema y certificación bajo la norma ISO 9001:2008, con limitaciones y restricciones en la formulación de políticas y objetivos de calidad, planeación estratégica, comunicación interna y gestión de recursos
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