Procesos de transición hacia el retiro deportivo: una revisión sistemática usando la herramienta PRISMA

The phenomena of sports retreat is a topic relatively new in sports science, for this reason it is addressed currently ideas about the process towards the sports retreat as the last stage in a professional sport career and competitive longevity in long-term athletes. The objective of this systematic revision is to identify researches which involve the way how they assume the transition process towards the sports retreat and the detraining of athletes.   To carry out this work, it was necessary an examination of the data. Scopus, Ebsco and Sciencedirect along august 2022.  The analysis was done through a combination of the terms: Detraining, Retirement and Sport using the inclusion criteria. Published review articles in the last ten years, In English or Spanish that allow access to complete texts. During the search 16.642 articles were found. After applying different filters and keeping in mind the title and the research objectives, 165 of them were taken into consideration, which were examined with the application of the check list suggested by the PRISMA tool. It provided us 17 articles to be considered in this research. From these, two of them come from systematic revision, one of them with PRISMA methodology, besides four quantitative and 11 qualitative. El fenómeno del retiro deportivo es una temática relativamente nueva en el campo de las ciencias del deporte, por ello se abordan ideas actuales acerca del proceso hacia el retiro deportivo, como la última etapa dentro de sus carreras profesionales y longevidad competitiva en deportistas de alto rendimiento. El objetivo de esta revisión sistemática es identificar las investigaciones que hablan sobre la manera como se asume el proceso de transición hacia el retiro deportivo y desentrenamiento en los deportistas. Para ello se realizó una búsqueda en las bases de datos. Scopus, Ebsco y Sciencedirect durante el mes de agosto del año 2022. La consulta se realizó combinando los términos: Detraining, Retirement y Sport utilizando los criterios de inclusión. Artículos de revisión, publicados en los últimos diez años, en idiomas inglés o español y que se tuviera acceso al texto completo. Durante la búsqueda se encontraron 16.642 artículos. Luego de aplicar los diferentes filtros teniendo en cuenta el título y los objetivos de la investigación se tuvieron en cuenta 165 de ellos, a los cuales se les aplicaron de nuevo los ítems incluidos en el check list de la herramienta PRISMA teniendo como resultado 17 artículos para ser contemplados en esta investigación. De estos, dos son de revisión sistemática, 1 de ellos con metodología PRISMA, además cuatro cuantitativas y once de carácter cualitativo

Ecofisiología de los plátanos en zona de altitud de Colombia en relación con su susceptibilidad a las cercosporiasis: informe final.

El cultivo del plátano en Colombia se constituye en un renglón de importancia desde el punto de vista alimentario y social. Una de las enfermedades de importancia en este cultivo es la sigatoka negra; en este estudio se analiza la susceptibilidad del cultivo de plátano a esta enfermedad, se analizó igualmente su conocimiento epidemiológico y el manejo de esta enfermedad para la zona cafetera de Colombia.Plátano-Musa sapientu

LES of non-Newtonian physiological blood flow in a model of arterial stenosis

Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition-to-turbulent non-Newtonian blood flow through a 3D model of arterial stenosis by using five different blood viscosity models: (i) Power-law, (ii) Carreau, (iii) Quemada, (iv) Cross and (v) modified-Casson. The computational domain has been chosen is a simple channel with a biological type stenosis formed eccentrically on the top wall. The physiological pulsation is generated at the inlet of the model using the first four harmonic series of the physiological pressure pulse (Loudon and Tordesillas [1]). The effects of the various viscosity models are investigated in terms of the global maximum shear rate, post-stenotic re-circulation zone, mean shear stress, mean pressure, and turbulent kinetic energy. We find that the non-Newtonian viscosity models enlarge the length of the post-stenotic re-circulation region by moving the reattachment point of the shear layer separating from the upper wall further downstream. But the turbulent kinetic energy at the immediate post-lip of the stenosis drops due to the effects of the non-Newtonian viscosity. The importance of using LES in modelling the non-Newtonian physiological pulsatile blood flow is also assessed for the different viscosity models in terms of the results of the dynamic subgrid-scale (SGS) stress Smagorinsky model constant, C<sub>s</sub>, and the corresponding SGS normalised viscosity

Developing and Evaluating a Game for the Assessment of Spatial Memory Using Auditory Stimuli

The combination of natural user interfaces and smart devices has become a new technological option to be exploited for the assessment of spatial memory. In this paper, we present an interactive game for assessing spatial memory using auditory stimuli. The distinct feature of our game is that it assesses the two types of information (i.e., acoustic and spatial) at the same time. We compared the performance of 100 children and 48 adults on the game with traditional neuropsychological tests. The performance on the game correlated with the performance on other traditional neuropsychological tests for the assessment of spatial short-term memory. Children and adults considered our game as easy to use, and all of them were satisfied with it. The results suggest that our game could be a valid tool for the identification of alterations in the spatial memory in both children and adults

Differential processing of anthropogenic carbon and nitrogen in benthic food webs of A Coruña (NW Spain) traced by stable isotopes

proyectos ANILE (CTM2009- 08396 and CTM2010-08804-E) del Plan Nacional de I+D+i y RADIALES del Instituto Español de Oceanografía (IEO). C.M. e I.G.V. disfrutaron de contratos FPI del IEO y del Ministerio de Economía y Competividad respectivamente.In this study the effect of inputs of organic matter and anthropogenic nitrogen at small spatial scales were investigated in the benthos of the Ria of A Coruña (NW Spain) using stable carbon and nitrogen isotopes. This ria is characteristically enriched in nutrients provided either by marine processes (as coastal upwelling) or by urban and agricultural waste. Stable isotope composition in trophic guilds of infaunal benthos revealed spatial differences related to their nutrient inputs. The main difference was the presence of an additional chemoautotrophic food web at the site with a large accumulation of organic matter. The enrichment in heavy nitrogen isotopes observed in most compartments suggests the influence of sewage-derived nitrogen, despite large inputs of marine nitrogen. Macroalgae (Fucus vesiculosus) resulted significantly enriched at the site influenced by estuarine waters. In contrast, no differences were found in mussels (Mytilus galloprovincialis), thus suggesting a major dependence on marine nutrient sources for this species. However, the estimations of anthropogenic influence were largely dependent on assumptions required to model the different contributions of sources. The measurement of stable isotope signatures in various compartments revealed that, despite anthropogenic nutrients are readily incorporated into local food webs, a major influence of natural marine nutrient sources cannot be discarded.IEO, Plan nacional I+D+iPreprint2,277

Infaunal macrobenthos in the Porcupine Bank (NE Atlantic)

The results of the macroinfaunal communities distributions from the annual series surveys PORCUPINE are shown. Those surveys were realized during the months of September and October in the years 2006, 2008, 2009, 2010, 2011, 2012 and 2013 by the Instituto Español de Oceanografía aboard the R /V Vizconde de Eza, within the research project ERDEM. This survey series has as main objective the obtainment of abundance indexes of the benthonic and demersal fauna from Porcupine Bank, west of Ireland, with special attention on the commercial species exploited by the Spanish fleet (hake, angler fish, megrim and norwegian lobster). For the study of the infaunal macrobenthos a total of 50 samples were analyzed from selected places of the Bank, where the bottom characteristics, the climatology or the survey schedule allowed. Samples were taken with an ULSNER box corer with 0.09 m2 of sampling area. Samples for the faunal study were sieved aboard with a 0.5 mm mesh size sieve. The material collected in the sieve was preserved with 8 % formaldehyde neutralized with borax, and stained with Rose Bengal solution for the posterior sorting and identification of fauna. Additional samples were taken to estimate the organic content of the sediment and to perform the granulometric analyses. Once in the laboratory, the granulometry was analyzed following the method recommended by Buchanan (1984); which consists in a combination of dry sieving of the coarse fraction (> 62 µm) and the sedimentation at 20 ºC of the fine fraction (< 62 µm) in a distilled water column. Sediment organic matter content was calculated as the percentage of weight loss by means of 24 hours sample calcination at 500 ºC, after dried it at 100 ºC during the same time. Complementary, in order to obtain a better coverage of the sedimentary types from the study area, more than 350 samples were collected with a net collector coupled to the trawling fishing gear (Baca-GAV 39/52). Globally, the sediments of the majority of the sampled stations are mainly formed by sand, between fine and very fine, except in deep areas of the southeast, where there are large muddy areas with elevated organic content and high selection coefficient. In the north, around the shallowest area, we found thicker sandy sediments, with lower organic content and moderate selection. The macroinfaunal communities from the Porcupine Bank are characterized by the dominance of the faunistic group of polychaetes (68.8 %), mainly represented by the families Owenidae, Spionidae, Paraonidae and Sabellidae. The next in number are the group of molluscs (17.6 %), dominated by the family Kelliellidae, which reaches maximum abundances up to 7520 ind•m-2. The poorest represented groups are the crustaceans (5.0 %), echinoderms (4.3 %) and the “others” (sipunculids, nemertine, etc.), being the latter the least abundant (3.7 %). In relation with the spatial distribution four macroinfaunal groups were indentified in the Porcupine Bank: - Group 1: located in intermediate depth areas, over sandy sediments with low organic content. The infaunal community is dominated by polychaetes from the Owenidae family, mainly represented by the specie Galathowenia oculata. - Group 2: occupies the sandy and low organic content sediments from the shallowest area of the Bank. Polychaetes are the most representative faunistic group, highlighting the dominance of the families Spionidae and Paraonidae. Prionospio fallax and Aricidea wassi are the most representative species of the group. - Group 3: situated in two deep areas in the south area of the Bank with muddy and high organic matter content sediments. It has the lowest infaunal abundance of the study, being dominated by the bivalve molluscs from the family Kelliellidae and by the annelids polychaetes from the family Paraonidae. - Group 4: Is the cluster that includes more stations in throughout the study. It is distributed spatially in the south area of the Bank, in different bathymetries, with the most heterogeneous sediments and moderate organic content. The bivalve molluscs from the Kelliellidae family again become dominant, with Kelliella miliaris reaching abundance over 7500 ind•m-2.IE

Slow oscillatory activity and levodopa-induced dyskinesias in Parkinson’s disease

The pathophysiology of levodopa-induced dyskinesias (LID) in Parkinson’s disease is not well understood. We have recorded local field potentials (LFP) from macroelectrodes implanted in the subthalamic nucleus (STN) of 14 patients with Parkinson’s disease following surgical treatment with deep brain stimulation. Patients were studied in the ‘Off’ medication state and in the ‘On’ motor state after administration of levodopa– carbidopa (po) or apomorphine (sc) that elicited dyskinesias in 11 patients. The logarithm of the power spectrum of the LFP in selected frequency bands (4–10, 11–30 and 60–80 Hz) was compared between the ‘Off’ and ‘On’ medication states. A peak in the 11–30 Hz band was recorded in the ‘Off’ medication state and reduced by 45.2% (P < 0.001) in the ‘On’ state. The ‘On’ was also associated with an increment of 77. 6% (P < 0.001) in the 4–10 Hz band in all patients who showed dyskinesias and of 17.8% (P < 0.001) in the 60–80 Hz band in the majority of patients. When dyskinesias were only present in one limb (n = 2), the 4–10 Hz peak was only recorded in the contralateralSTN. These findings suggest that the 4–10 Hz oscillation is associated with the expression of LID in Parkinson’s disease

Comunidades macroinfaunales submareales del golfo Ártabro

El capítulo quinto describe las comunidades macroinfaunales del golfo Ártabro. Desde los años 80 el Centro Oceanográfico de A Coruña ha estudiado la fauna submareal de los fondos blandos de la ría coruñesa y su plataforma adyacente. La ría de Ferrol fue muestreada también por parte del centro coruñés. Por otro lado, la fauna de la ría de Ares-Betanzos fue intensamente estudiada por la Universidade de Santiago de Compostela. El capítulo incluye también la evolución de dos comunidades macroinfaunales de la ría de A Coruña, que vienen siendo monitorizadas desde comienzos de los años 80, abarcando también los efectos que tuvieron sobre las mismas los dragados portuarios o los vertidos de contaminantes. Se completa esta parte del libro con una breve referencia a otros trabajos, los cuales están relacionados con el crecimiento y dinámica de ciertas especies de bivalvos, el suprabentos, las redes tróficas bentónicas o el marisqueo en la zona.Versión del edito