Mass mortality event of round sardinella Sardinella aurita Valenciennes associated with Glugea Thélohan, 1891 microsporidian infection off the southern Italian coast.

Intracellular parasites of the genus Glugea Thélohan, 1891 (Microsporidia) comprise about 34 putative species capable of causing high morbidity and mortality in freshwater and marine teleost fishes. In this study, we report on the first mass mortality event associated with Glugea sp. infecting free-ranging round sardinella Sardinella aurita in the southern Tyrrhenian Sea (Italy). Here, we describe the ultrastructure of mature spores of this microsporidian and characterize it molecularly, as well as report its phylogenetic position. Most of the affected fish showed an irregular swelling of its abdomen. At necropsy, a variable number of xenomas, spherical to ellipsoidal in shape, were found in the peritoneal cavity strongly attached to the viscera of all fish. Histological analysis revealed varying severity of chronic inflammation along with occasional necrosis in visceral organs associated with multiple xenoma proliferation. These pathological findings were considered the main cause of this mass mortality event. Morphologically, the present material was closely related to G. sardinellesis and G. thunni. The phylogenetically closest taxa to the newly SSU rDNA sequence were G. thunni and an erroneusly identified  G. plecoglossi, which were very closely related to each other, also suggesting that all these sequences might belong to the same species.

Colorimetric Evaluation of a Reintegration via Spectral Imaging-Case Study: Nasrid Tiling Panel from the Alhambra of Granada (Spain).

Color reintegration is a restoration treatment that involves applying paint or colored plaster to an object of cultural heritage to facilitate its perception and understanding. This study examines the impact of lighting on the visual appearance of one such restored piece: a tiled skirting panel from the Nasrid period (1238-1492), permanently on display at the Museum of the Alhambra (Spain). Spectral images in the range of 380-1080 nm were obtained using a hyperspectral image scanner. CIELAB and CIEDE2000 color coordinates at each pixel were computed assuming the CIE 1931 standard colorimetric observer and considering ten relevant illuminants proposed by the International Commission on Illumination (CIE): D65 plus nine white LEDs. Four main hues (blue, green, yellow, and black) can be distinguished in the original and reintegrated areas. For each hue, mean color difference from the mean (MCDM), CIEDE2000 average distances, volumes, and overlapping volumes were computed in the CIELAB space by comparing the original and the reintegrated zones. The study reveals noticeable average color differences between the original and reintegrated areas within tiles: 6.0 and 4.7 CIEDE2000 units for the yellow and blue tiles (with MCDM values of 3.7 and 4.5 and 5.8 and 7.2, respectively), and 16.6 and 17.8 CIEDE2000 units for the black and green tiles (with MCDM values of 13.2 and 12.2 and 10.9 and 11.3, respectively). The overlapping volume of CIELAB clouds of points corresponding to the original and reintegrated areas ranges from 35% to 50%, indicating that these areas would be perceived as different by observers with normal color vision for all four tiles. However, average color differences between the original and reintegrated areas changed with the tested illuminants by less than 2.6 CIEDE2000 units. Our current methodology provides useful quantitative results for evaluation of the color appearance of a reintegrated area under different light sources, helping curators and museum professionals to choose optimal lighting.

Regenerative Peripheral Nerve Interfaces (RPNIs) in Animal Models and Their Applications: A Systematic Review.

Regenerative Peripheral Nerve Interfaces (RPNIs) encompass neurotized muscle grafts employed for the purpose of amplifying peripheral nerve electrical signaling. The aim of this investigation was to undertake an analysis of the extant literature concerning animal models utilized in the context of RPNIs. A systematic review of the literature of RPNI techniques in animal models was performed in line with the PRISMA statement using the MEDLINE/PubMed and Embase databases from January 1970 to September 2023. Within the compilation of one hundred and four articles employing the RPNI technique, a subset of thirty-five were conducted using animal models across six distinct institutions. The majority (91%) of these studies were performed on murine models, while the remaining (9%) were conducted employing macaque models. The most frequently employed anatomical components in the construction of the RPNIs were the common peroneal nerve and the extensor digitorum longus (EDL) muscle. Through various histological techniques, robust neoangiogenesis and axonal regeneration were evidenced. Functionally, the RPNIs demonstrated the capability to discern, record, and amplify action potentials, a competence that exhibited commendable long-term stability. Different RPNI animal models have been replicated across different studies. Histological, neurophysiological, and functional analyses are summarized to be used in future studies.

Relationship of indicators of ability and experience of military sports skydiving with the psychological state and performance in competition of elite jumpers / Relación de indicadores de habilidad y experiencia del paracaidismo deportivo militar con el estado psicológico y rendimiento en competición de saltadores de élite / Relação dos indicadores de habilidade e experiência do paraquedismo esportivo militar com o estado psicológico e desempenho em competição de saltadores de elite

Se deben considerar múltiples variables cuando se habla de rendimiento deportivo. Entre ellas, la literatura establece la importancia de la psicología y las técnicas indicadoras de la experiencia adquirida en la disciplina. Este estudio pretende establecer la relación entre determinados constructos que definen el perfil psicológico del deportista con indicadores de habilidad en paracaidismo militar. Para ello, se encuestó a 42 saltadores de 40,86 años (±7,35) pertenecientes al ejército español y a la guardia civil durante la celebración del Campeonato Nacional Militar de paracaidismo que se celebra anualmente, para conocer su nivel de optimismo, resiliencia, bienestar psicológico y burnout. Se concluye que los años de experiencia en paracaidismo y el número de saltos, como indicadores de habilidad, deben ser tomados en cuenta con un mayor nivel de concreción y especificidad, ya que ciertas variables psicológicas pueden aumentar o disminuir dependiendo de ellas. Conviene estudiar cada caso en particular para comprender qué puede ocurrir en el estado del paracaidista y desarrollar estrategias para optimizar el rendimiento deportivo. (AU)

Multiple variables must be considered when talking about sports performance. Among them, the literature establishes the importance of psychology and indicator techniques of experience acquired in the discipline. This study aims to establish the relationship between certain constructs that define the psychological profile of the athlete with skill indicators in military parachuting. For this, 42 jumpers aged 40.86 years old (±7.35) belonging to the Spanish army and the civil guard during the celebration of the National Military Championship of Skydiving which is held annually surveyed to know their level of optimism, resilience, psychological well-being, and burnout. It is concluded that the years of skydiving experience and the number of jumps, as indicators of skill, must be taken into account with a higher level of concreteness and specificity since certain psychological variables can increase or decrease depending on them. It is convenient to study each case, in particular, to understand what can happen in the state of the parachutist and develop strategies for optimizing sports performance. (AU)

Múltiplas variáveis devemser consideradas quando se fala em desempenho desportivo. Eentre eles, a literatura estabelece a importância da psicologia e das técnicas indicadoras daexperiência adquirida na disciplina. Este estudo visa estabelecer a relaçãoentre determinados constructos que definem o perfil psicológico do atleta com indicadores de habilidade no paraquedismo militar. Para tal, foram inquiridos 42 saltadores com 40,86anos (±7,35) pertencentes ao exército espanhol e à guarda civil durante a celebração do Campeonato Nacional Militar de paraquedismo que se realiza anualmente para conhecer o seu nível de optimismo, resiliência, bem-estar psicológicoe esgotamento. Conclui-se que os anos de experiência em paraquedismo e o número de saltos, como indicadores de habilidade, devem ser levados em consideração com maior grau deespecificidade, pois certas variáveis psicológicas podem aumentar ou diminuir. É conveniente estudar cada caso em particular para entender o que pode acontecer no estado do paraquedista e desenvolver estratégias para otimizar o desempenho esportivo. (AU)

Evaluación de las propiedades psicométricas de la Escala de Curiosidad Epistémica de Litman en hispanohablantes

La Curiosidad Epistémica (CE) es el deseo que motiva a las personas a adquirir nuevo conocimiento. La escala de CE de Litman fue desarrollada para operacionalizar este constructo, y aunque su estructura latente ha sido validada en varios estudios, estos se han realizado en su mayoría en Alemania, EE. UU. y los Países Bajos, que son sociedades educadas, industrializadas, ricas y democráticas. Por consiguiente, el presente estudio evaluó las propiedades psicométricas de la escala de CE, en una muestra de adultos del noroeste de México (N = 334) con edades de 18 a 50 años. Al igual que en investigaciones previas, se compararon dos modelos: unidimensional y bidimensional, mediante análisis factoriales confirmatorios. Adicionalmente, se incluyeron los residuales correlacionados significativos, como parte de ambos modelos, y se examinó si el instrumento tiene invarianza de medición. Los resultados muestran que el modelo bifactorial presentó el mejor ajuste. La consistencia interna fue aceptable, y se comprobó que la escala posee invarianza configural, métrica, escalar y estricta. Usos potenciales de este constructo emergente incluyen su estudio como un factor motivacional relevante, en el nivel de involucramiento y las estrategias de formación de los estudiantes, así como su papel mediador en varios tipos de ansiedad en el aprendizaje.

Epistemic Curiosity (EC) is the desire that motivates people to acquire new knowledge. Litman's EC scale was developed to operationalize this construct, and although its latent structure has been validated in several studies, these have been conducted mostly in Germany, the Netherlands, and the United States, which are educated, industrialized, wealthy, and democratic societies. Therefore, the present study evaluated the psychometric properties of the EC scale in a sample of adults from northwestern Mexico (N = 334) aged 18 to 50 years. As in previous research, two models were compared: one unidimensional and one bidimensional, using Confirmatory Factor Analysis. Additionally, significantly correlated residuals were included as part of both models, and it was examined whether the instrument has measurement invariance. The results show that the bifactor model presented the best fit. The internal consistency was acceptable, and the scale was found to have configural, metric, scalar, and strict invariance. Potential uses of this emerging construct include its study as a relevant motivational factor in students' level of engagement and study strategies, as well as its mediating role in various types of learning anxiety.

PCM-based hybrid thermal management system for photovoltaic modules: A comparative analysis.

Proper temperature regulation of photovoltaic (PV) modules increases their performance. Among various cooling techniques, phase change materials (PCMs) represent an effective thermal management route, thanks to their large latent heat at constant temperatures. Radiative cooling (RC) is also recently explored as a passive option for PV temperature regulation. In this paper, a heat sink (HS), phase change materials, and radiative cooling are integrated with photovoltaic modules to achieve low and uniform temperature distribution along the PV module and improved performance. Eight different combinations are considered for the proposed system, including HS, PCM, and RC, and their various combinations. The PCM is selected according to the environmental conditions of the selected location. A comprehensive 2-D model is developed and analyzed in COMSOL-Multiphysics software by solving the governing equations using the finite element method. The performance analysis is carried out for the climatic conditions of the Atacama Desert, having high solar radiation and ambient temperature. The effects of PCM height, ambient temperature, wind velocity, and solar radiation on the performance of the proposed system are studied. The performance of eight different configurations is also compared. The maximum reductions in PV temperature, maximum PV power, and a minimum drop in PV conversion efficiency are observed to be 22 oC, 152 W, and 14% using a combined heat sink and radiative cooling systems, among all other configurations. The findings of this study can be used to select the best PV cooling method among different configurations.

Preference of medical specialties among medical students in a Chilean university. / Preferencia de especialidades médicas en estudiantes de medicina de una universidad chilena.

This study describes medical specialty preferences expressed by medical students at a regional university in northern Chile. This descriptive study is based on primary information with a sample of 266 valid responses and a response rate of 58.7%. The information was collected through a Google Forms questionnaire before voluntary consent of participation from May to July 2022. We found that the medical specialties preferred by the Universidad Católica del Norte students were clinical specialties, including internal medicine, and medical-surgical specialties, including emergency medicine and gynecology-obstetrics. Women markedly predominated in child and adolescent psychiatry, gynecology-obstetrics, pediatric surgery, pediatrics, and family medicine, while men predominated in radiology and anesthesiology, both associated with indirect patient interaction. We also found that surgical specialties, traditionally preferred by men, could be in the process of generational change, as there is an increase in the presence of women, especially in general surgery.

En este trabajo se describen las preferencias de elección de especialidad médica que manifiestan los estudiantes de la carrera de medicina de una universidad regional del norte de Chile. Se trata de un estudio descriptivo basado en información primaria con una muestra de 266 respuestas válidas, con una tasa de respuesta de 58,7%. La información se recogió a través de un cuestionario disponible en Google Forms, previo consentimiento voluntario de participación, durante los meses de mayo a julio de 2022. Se encontró que las especialidades médicas preferidas por los estudiantes de la Universidad Católica del Norte fueron las especialidades clínicas como medicina interna y las médico-quirúrgicas como medicina de urgencias y ginecología-obstetricia. Además, existen especialidades con un claro predominio femenino como psiquiatría infanto-adolescente, ginecología-obstetricia, cirugía pediátrica, pediatría y medicina familiar, mientras que el predominio masculino destaca en radiología y anestesiología, ambas asociadas a un trato indirecto con el paciente. Se observó que las especialidades quirúrgicas, tradicionalmente preferidas por hombres, podrían estar en proceso de cambio generacional, aumentando la presencia femenina en ellas, sobre todo en cirugía general.

Preferencia de especialidades médicas en estudiantes de medicina de una universidad chilena / Preference of medical specialties among medical students in a Chilean university

En este trabajo se describen las preferencias de elección de especialidad médica que manifiestan los estudiantes de la carrera de medicina de una universidad regional del norte de Chile. Se trata de un estudio descriptivo basado en información primaria con una muestra de 266 respuestas válidas, con una tasa de respuesta de 58,7%. La información se recogió a través de un cuestionario disponible en Google Forms, previo consentimiento voluntario de participación, durante los meses de mayo a julio de 2022. Se encontró que las especialidades médicas preferidas por los estudiantes de la Universidad Católica del Norte fueron las especialidades clínicas como medicina interna y las médico-quirúrgicas como medicina de urgencias y ginecología-obstetricia. Además, existen especialidades con un claro predominio femenino como psiquiatría infanto-adolescente, ginecología-obstetricia, cirugía pediátrica, pediatría y medicina familiar, mientras que el predominio masculino destaca en radiología y anestesiología, ambas asociadas a un trato indirecto con el paciente. Se observó que las especialidades quirúrgicas, tradicionalmente preferidas por hombres, podrían estar en proceso de cambio generacional, aumentando la presencia femenina en ellas, sobre todo en cirugía general.

This study describes medical specialty preferences expressed by medical students at a regional university in northern Chile. This descriptive study is based on primary information with a sample of 266 valid responses and a response rate of 58.7%. The information was collected through a Google Forms questionnaire before voluntary consent of participation from May to July 2022. We found that the medical specialties preferred by the Universidad Católica del Norte students were clinical specialties, including internal medicine, and medical-surgical specialties, including emergency medicine and gynecology-obstetrics. Women markedly predominated in child and adolescent psychiatry, gynecology-obstetrics, pediatric surgery, pediatrics, and family medicine, while men predominated in radiology and anesthesiology, both associated with indirect patient interaction. We also found that surgical specialties, traditionally preferred by men, could be in the process of generational change, as there is an increase in the presence of women, especially in general surgery.

First record of the cirripede Anelasma squalicola Darwin, 1852 (Pollicipedidae) in the Mediterranean Sea.

Anelasma squalicola Darwin 1852, is a barnacle that occurs on elasmobranchs from the Atlantic, Pacific, Arctic and Indian Ocean. It infects sharks of the families Etmopteridae and Pentanchidae. The barnacle attaches sub-dermally to its hosts, relying on its interstitial fluid for its nourishment. Herein we present the first record of this species in the Mediterranean Sea, from Etmopterus spinax (Linnaeus, 1758) caught during a bottom-trawl survey in the Alboran Sea (western Mediterranean) in 2017. The overall prevalence of infection was very low (0.22%). The calculated HSI index for the parasitized individual was lower compared to overall means of other individuals and could indicate a potential physiological alteration in the host.

Exploring the genetic and genomic connection underlying neurodegeneration with brain iron accumulation and the risk for Parkinson's disease.

Neurodegeneration with brain iron accumulation (NBIA) represents a group of neurodegenerative disorders characterized by abnormal iron accumulation in the brain. In Parkinson's Disease (PD), iron accumulation is a cardinal feature of degenerating regions in the brain and seems to be a key player in mechanisms that precipitate cell death. The aim of this study was to explore the genetic and genomic connection between NBIA and PD. We screened for known and rare pathogenic mutations in autosomal dominant and recessive genes linked to NBIA in a total of 4481 PD cases and 10,253 controls from the Accelerating Medicines Partnership Parkinsons' Disease Program and the UKBiobank. We examined whether a genetic burden of NBIA variants contributes to PD risk through single-gene, gene-set, and single-variant association analyses. In addition, we assessed publicly available expression quantitative trait loci (eQTL) data through Summary-based Mendelian Randomization and conducted transcriptomic analyses in blood of 1886 PD cases and 1285 controls. Out of 29 previously reported NBIA screened coding variants, four were associated with PD risk at a nominal p value < 0.05. No enrichment of heterozygous variants in NBIA-related genes risk was identified in PD cases versus controls. Burden analyses did not reveal a cumulative effect of rare NBIA genetic variation on PD risk. Transcriptomic analyses suggested that DCAF17 is differentially expressed in blood from PD cases and controls. Due to low mutation occurrence in the datasets and lack of replication, our analyses suggest that NBIA and PD may be separate molecular entities.

Mapping a brain parasite: occurrence and spatial distribution in fish encephalon.

Parasites, especially brain-encysting trematodes, can have an impact on host behaviour, facilitating the transmission to next host and completion of the life cycle, but insufficient research has been done on whether specific brain regions are targeted. Using Cardiocephaloides longicollis as a laboratory model, the precise distribution of metacercariae in experimentally-infected, wild and farmed fish was mapped. The brain regions targeted by this parasite were explored, also from a histologic perspective, and potential pathogenic effects were evaluated. Experimental infections allowed to reproduce the natural infection intensity of C. longicollis, with four times higher infection intensity at the higher dose (150 vs 50 cercariae). The observed metacercarial distribution, similar among all fish groups, may reflect a trematode species-specific pattern: metacercariae occur with highest density in the optic lobe area (primarily infecting the periventricular gray zone of optic tectum) and the medulla oblongata, whereas other areas such as the olfactory lobes and cerebellar lobes may be occupied when the more frequently invaded parts of the brain were crowded. Mono- and multicysts (i.e. formed either with a single metacercaria, or with 2-25 metacercariae encapsulated together) may be formed depending on the aggregation and timing of metacercariae arrival, with minor host inflammatory response. Larvae of C. longicollis colonizing specific brain areas may have an effect on the functions associated with these areas, which are generally related to sensory and motor functions, but are also related to other host fitness traits such as school maintenance or recognition of predators. The detailed information on the extent and distribution of C. longicollis in fish encephalon sets the ground to understand the effects of brain parasites on fish, but further investigation to establish if C. longicollis, through purely mechanical damage (e.g., occupation, pressure and displacement), has an actual impact on host behaviour remains to be tested under controlled experimental conditions.

Ira y Personalidad como dos factores relacionados en el deporte: una revisión sistemática / A raiva e a personalidade como dois factores relacionados no desporto: uma revisão sistemática / Anger and personality as two related factors in sport: a systematic review

La ira en el deporte parece ser, aparentemente, una característica intrínseca en el desarrollo de este, sobre todo cuando es la competición la que marca el contexto en el que se desarrolla. Se inicia así, un trabajo de revisión sistemática cuyo objetivo fue conocer el estudio de la ira en deportistas y su relación con variables de personalidad, que pudiesen estar en el origen de aquella o que en cierta medida pudiesen explicar comportamientos violentos. En primer lugar, se seleccionaron las palabras clave (ira, personalidad y deporte) y a continuación se buscaron y seleccionaron en las bases de datos “Web of Science”, “SCOPUS”, “Dialnet”, PsycInfo”, “Psicodoc”, “PubMed” y “SPORTDiscus” aquellos artículos que tuvieran relación con esa temática, obteniendo tras la depuración descrita en el apartado de metodología, un total de 10 artículos, pudiendo señalar como más relevante la conclusión de que, entre otras, existe una estrecha relación entre determinados patrones de personalidad y comportamientos agresivos en el contexto deportivo. A partir de ahí se han discutido las principales aportaciones que han realizado los investigadores pudiendo establecer, como futuras líneas de investigación y aplicación práctica, la utilización de muestra femenina con el fin de generalizar a la totalidad de la población, la creación de cuestionarios estándar que midan las variables de la misma forma y, sobre todo, la instauración de programas de gestión emocional para controlar esos patrones desadaptativos. (AU)

Anger in sport seems to be, apparently, an intrinsic characteristic in the development of sport, especially when it is the competition that marks the context in which it develops. I began a systematic review of the study of anger in athletes and its relationship with personality variables, which could be at the origin of this explain violent behavior. The procedure we followed was firstly, selection of the key words (anger, personality and sport) and then we searched and selected in the databases "Web of Science", "SCOPUS", "Dialnet", "PsycInfo", "Psicodoc", "PubMed" and "SPORTDiscus" those articles that were related to this topic. After thefiltering described in the methodology section, a total of 10 articles were obtained. The most relevant conclusion was that there is a close relationship between certain personality patterns and aggressive and/or unsportsmanlike behavior in the sports context. The main contributions made by the researchers have been establishing as future lines of research and practical application the use of a female sample to be able to generalize to the whole population, the creation of standard questionnaires that measure the variables in the same way and, above all, the creation of emotional management programs to control these maladaptive patterns. (AU)

A raiva no desporto parece ser, aparentemente, uma característica intrínseca no desenvolvimento do desporto, especialmente quando é a competição que marca o contexto em que este se desenvolve. Assim, eu comencei uma revisão sistemática do estudo da raiva nos atletas e da sua relação com as variáveis de personalidade que poderiam estar na origem da mesma ou que, até certo ponto, poderiam explicar comportamentos violentos. Primeiro, foram selecionadas as palavras-chave (raiva, personalidade e desporto) e depois as bases de dados "Web of Science", "SCOPUS", "Dialnet", "PsycInfo", "Psicodoc", "PubMed" e "SPORTDiscus" foram pesquisadas e selecionadas para os artigos relacionados com este assunto, Após a filtragem descrita na secção de metodologia, foi obtido um total de 10 artigos, sendo a conclusão mais relevante que, entre outros, existe uma relação estreita entre certos padrões de personalidade e comportamentos agressivos no contexto desportivo. A partir daí, foram discutidas as principais contribuições feitas pelos investigadores, estabelecendo como linhas futuras de investigação e aplicação prática a utilização de uma amostra feminina a fim de generalizar a toda a população, a criação de questionários padrão que medem as variáveis da mesma forma e, sobretudo, o estabelecimento de programas de gestão emocional para controlar estes padrões maladaptados. (AU)

Vitalidad Subjetiva, Bienestar Psicológico y Fortaleza Mental en Deportes de Combate / Vitalidade Subjetiva, Bem-Estar Psicológico e Resistência Mental em Esportes de Combate / Subjective Vitality, Psychological Wellbeing and Mental Strength in Combat Sports

La percepción de vitalidad es crítica para el funcionamiento físico, psicológico, y para el bienestar psicológico de los deportistas. Las investigaciones en el ámbito del deporte indican que existe una alta correlación entre vitalidad subjetiva y bienestar psicológico, siendo la fortaleza mental una variable protectora para la salud, ya que aumenta el bienestar psicológico. Por ello, el objetivo del presente estudio es conocer el nivel de bienestar psicológico y las posibles relaciones que existen entre los tres constructos en una muestra de adolescentes y adultos jóvenes de alto rendimiento deportivo en deportes de combate. Los resultados indican que existe una relación positiva entre las tres variables, siendo la vitalidad la que explica parte de la fortaleza mental y el bienestar psicológico con un efecto del tamaño alto. Además, la Fortaleza Mental es mediador de la relación de vitalidad subjetiva con bienestar psicológico (B=.122; SE= .028; LLCI=.073; ULCI=.183). Es decir, la vitalidad subjetiva influye en el bienestar psicológico mediante la fortaleza mental. Por tanto, la fortaleza mental no solo es importante como constructo, sino que en este estudio desempeña un rol de mediador. Parece importante el desarrollo de programas de intervención a jóvenes deportistas para la adquisición de habilidades centradas en las variables estudiadas. (AU)

The perception of vitality is essential for physical, psychological functioning and for the psychological well-being of athletes.Research in sport psychology indicates thatthere is a high correlation between subjective vitality and psychological wellbeing, being mental strength a protective variable for health, since it increases psychological wellbeing. Therefore, the objective of this study is to know the level of psychological well-being and the possible relationships between the three constructs in a sample of adolescents and young adults with high athletic performance in combat sports.The results indicate that there is a positive relationship between the three variables, being vitality that explains part of mental strength and psychological wellbeing with a high effect size. In addition, the Mental Force is a mediator of the relationship of subjective vitality with psychological wellbeing(B=.122; SE= .028; LLCI=.073; ULCI=.183).That is, subjective vitality influences psychological well-being through mental strength. Therefore, mental toughness is not only important as a construct, but plays a mediating role in this study. It seems important to develop intervention programs for young athletes for the acquisition of skills focused on the variables studied. (AU)

A percepção da vitalidade é fundamental para o funcionamentofísico, psicológicoalém de para o bem-estar psicológico dos atletas. Pesquisas na área do esporteindicam que existe uma alta correlação entre vitalidade subjetiva e bem-estar psicológico, sendo a força mental umavariávelprotetora para a saúde, pois aumenta o bem-estar psicológico. Neste sentido, o alvodesteestudo é conhecer o nível de bem-estar psicológico e as possíveisrelações que existem entre os trêsconstrutos em umaamostra de adolescentes e adultos jovenscom alto desempenho atlético em esportes de combate. Os resultados mostram que existe umarelação positiva entre as trêsvariáveis, com a vitalidade explicando parte da força mental e do bem-estar psicológico comumtamanho de efeito alto. Alémdisso, a Resistência Mental medeia a relação entre vitalidade subjetiva e bem-estar psicológico(B=.122; SE= .028; LLCI=.073; ULCI=.183). Ouseja, a vitalidade subjetiva influencia o bem-estar psicológico através da resistência mental. Portanto, a resistência mental não é apenas importante como construto, mas tambémdesempenhaum papel mediador nesteestudo. Parece importante desenvolver programas de intervenção para jovens atletas para aquisição de habilidades focadasnasvariáveis estudadas. (AU)

Genetic variation of Sparicotyle chrysophrii (Monogenea: Microcotylidae) from the gilthead sea bream Sparus aurata (Teleostei: Sparidae) in the Mediterranean Sea.

The gill monogenean Sparicotyle chrysophrii (Van Beneden & Hesse, 1863) Mamaev, 1984 is a specific and common parasite of wild and cultured gilthead sea bream Sparus aurata Linnaeus, 1758, able to cause disease and mortality in aquaculture systems. Few molecular studies have been carried out on this monogenean, and its population structure and genetic diversity are barely known. This study provides the first contribution to the population genetic variation of S. chrysophrii, based on two molecular markers - the structural ribosomal RNA (rRNA) for the large subunit (28S) and the cytochrome c oxidase subunit I (COI) gene. Samples were collected from the gills of farmed and wild S. aurata from Italy and the Spanish Mediterranean. The analysis included previously published sequences. The 28S rDNA analysis was consistent with previous studies of specimens isolated from S. aurata and confirmed the presence of only one species on the gills of this host in the Mediterranean Sea. The COI sequences analysis suggested that the samples isolated in a previous study from a different host species, wild Boops boops (Linnaeus, 1758) in the Adriatic Sea, may represent a new undescribed sister species of S. chrysophrii. The low nucleotide diversity of S. chrysophrii isolated only from S. aurata versus the high haplotype diversity revealed small differences between haplotypes. The haplotypes shared between wild and farmed hosts from Spain provided the first molecular evidence of the possible transfer of S. chrysophrii between wild and farmed populations of S. aurata. The mtDNA COI analysis did not show a clear genetic structure, probably the result of several factors including coevolution, wild and farmed host interactions, and host population structure in space and time.

Bibliometría y mapeo de redes de la producción científica internacional de Cuba sobre ataxias (1993-2020) / Bibliometrics and network mapping of Cuban international scientific production on ataxias (1993-2020)

El objetivo del estudio fue caracterizar el potencial investigador cubano en el ámbito de las ataxias y su evolución temporal. Se realizó una búsqueda en la base de datos Web of Science y se obtuvieron todos los documentos publicados entre 1993 y 2020. Se aplicaron indicadores bibliométricos para explorar la producción, dispersión, distribución y crecimiento anual de los documentos (ley de Price, ley de Lotka, índice de transitoriedad y modelo de Bradford). Se calculó el índice de participación y colaboración de países e instituciones y, por cartografía bibliométrica, se exploraron las redes de coocurrencia de los términos más utilizados. La producción científica de Cuba sobre ataxias hereditarias es alta (219 documentos) y se ajusta a un crecimiento lineal (r= 0,7580). El período estudiado concentra el 47,95 por ciento de los registros con un ritmo anual de publicaciones del 6,6 por ciento y tiempo de duplicidad de 10,8 años. El total de citas fue de 3807 (índice medio: 131,27; índice -h: 31). Se concluye que el crecimiento de la literatura científica cubana sobre ataxias fue lineal para el período estudiado, lo que confirma el incumplimiento de la ley de Price de crecimiento de la literatura científica. El estudio también corrobora la importante red de integración y cooperación internacional entre los diferentes autores y la interdisciplinariedad de los trabajos, evidencia del éxito del Centro para la Investigación y Rehabilitación de las Ataxias Hereditarias (CIRAH), al planificar una estrategia de colaboración científica con objetivos definidos(AU)

The objective of this study was to characterize the Cuban research potential in the field of ataxias and its temporal evolution. A search was carried out in the Web of Science database and all the documents published from 1993 to 2020 were retrieved. Bibliometric indicators were applied to explore the production, dispersion, distribution and annual growth of the documents (Price's law, Lotka's law, transience index and Bradford model). The participation and collaboration index of countries and institutions was calculated and, through bibliometric cartography, the co-occurrence networks of the most used terms were explored. The Cuban scientific production on hereditary ataxias is high (219 documents) and it adjusts to a linear growth (r = 0.7580). The period studied concentrates 47.95percent of the records with an annual publication rate of 6.6percent and 10.8 years' duplication time. The total number of citations was 3807 (mean index: 131.27; h-index: 31). Growth of the Cuban scientific literature on ataxias was concluded to be linear for the period studied, which confirms the non-compliance with Price's law of growth of scientific literature. The study also corroborates the important network of integration and international cooperation among the different authors and the interdisciplinarity of the papers, marking the success of the Center for Research and Rehabilitation of Hereditary Ataxias (CIRAH), when planning a strategy of scientific collaboration with objectives defined(AU)

Relationship between resilience, optimism, and burnout in Pan-American athletes.

Aim: A series of knowledge has been developed on burnout syndrome in the sports context that has allowed to generate a solid theoretical structure that requires new contributions to delve into those aspects that have been less addressed, as is the case of optimism and resilience when it comes to linking them to the syndrome in top-performance athletes. For this purpose, the Burnout Inventory for Athletes (IBD-r), the Resilience Scale adapted to Spanish, and the Life Orientation Scale-Revised (LOT-R) for optimism were used. Methods: From this perspective, the study was approached with 121 Uruguayan athletes who participated in the last Pan-American Games, assuming practically all the subjects who have this level of sport (142) considering gender and type of sport. Results: The results indicate that 67% of the sample presents burnout symptoms for the emotional exhaustion dimension, and moderate resilience and optimism. Although there are no significant differences attributable to gender or type of sport, this contribution allows us to continue focusing on future work and further analysis. The type of sport presented statistically significant differences in relation to the personal competence dimension and the type of sport. Conclusion: Resilience and optimism obtained a clear influence on the occurrence of burnout, in a statistically negative sense, showing themselves as interesting prevention strategies for future lines of research, where it is essential to design interventions that teach emotional skills to manage adversity and prevent burnout.

The limit of physiological adaptation of the right ventricle to endurance training / El límite de la adaptación fisiológica del ventrículo derecho al entrenamiento de resistencia / O limite da adaptação fisiológica do ventrículo direito ao treino de resistência

The study aims to conduct a review of right ventricle, measured by echocardiography or magnetic resonance imaging, in athletes with high dynamic component and moderate static, the limit of the physiological adaptation. A search was carried out in the Medline database up to the end of 2017. This study showed that the mean values for the different measurements of the right ventricle in athletes are significantly greater than that of sedentary controls. In two of the 12 studies that analyzed mean diameter of the right ventricle in apical 4C, including 1477 endurance athletes and 498 controls, with high heterogeneity. Endurance athletes presented significantly higher longitudinal diameter of the RV in apical absolutes scores compared to control. The end diastolic volume and end systolic volume measured by magnetic resonance imaging, showed a significant standardized mean difference favoring athletes with a moderate heterogeneity.(AU)

El estudio tiene como objetivo realizar una revisión del ventrículo derecho, medido por ecocardiografía o resonancia magnética, en deportistas con alto componente dinámico y estático moderado, el límite de la adaptación fisiológica. Se realizó una búsqueda en la base de datos Medline hasta finales de 2017. Este estudio mostró que los valores medios de las diferentes mediciones del ventrículo derecho en los deportistas son significativamente mayores que los de los controles sedentarios. En dos de los 12 estudios que analizaron el diámetro medio del ventrículo derecho en apical 4C, incluyendo 1477 atletas de resistencia y 498 controles, con alta heterogeneidad. Los atletas de resistencia presentaron un diámetro longitudinal del VD en absolutas apicales significativamente mayor en comparación con los controles. El volumen diastólico final y el volumen sistólico final medidos por resonancia magnética, mostraron una diferencia media estandarizada significativa a favor de los atletas con una heterogeneidad moderada.(AU)

O estudo visa conduzir uma revisão do ventrículo direito, medido por ecocardiografia ou ressonância magnética, em atletas com elevada componente dinâmica e estática moderada, o limite da adaptação fisiológica. Foi realizada uma pesquisa na base de dados Medline até ao final de 2017. Este estudo mostrou que os valores médios das diferentes medidas do ventrículo direito em atletas são significativamente superiores aos dos controlos sedentários. Em dois dos 12 estudos que analisaram o diâmetro médio do ventrículo direito em 4C apical, incluindo 1477 atletas de endurance e 498 controlos, com elevada heterogeneidade. Os atletas de resistência apresentaram um diâmetro longitudinal do VD significativamente mais elevado nas pontuações absolutas apicais, em comparação com os controlos. O volume diastólico final e o volume sistólico final medido por ressonância magnética, mostraram uma diferença média padronizada significativa, favorecendo os atletas com uma heterogeneidade moderada.(AU)

Infection process, viability and establishment of Anisakis simplex s.l. L3 in farmed fish; A histopathological study in gilthead seabream.

Anisakis spp. (Nematoda, Anisakidae) are parasites known by their economic and health impacts, as their L3 larval stages infect a variety of fish species, many of them commercial species, sometimes causing zoonotic episodes due to consumption of raw or undercooked fish. The aim of this study is to determine the infection process and the potential impact of A. simplex s.l. L3 on gilthead seabream (Sparus aurata L.), one of the most important fish species in Mediterranean aquaculture, by periodic histological monitoring of the infection process. For this, fish were experimentally infected with A. simplex s.l. L3 and periodically analysed for L3 larvae, collecting samples at different time points (hours post ingestion, hpi): 3, 6, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168 and 192, up to 6 months post infection (mpi). All samples were observed under a stereomicroscope and later fixed for histological examination. A. simplex s.l. L3 were only found on the visceral surface and mesenteric tissue, but never free or encapsulated in muscle. Chronological events were found to occur faster than those reported in previous studies. They were first observed 6 hpi in the coelomic cavity, being present up to 48 hpi. While the earliest evidence of fibrocytes surrounding A. simplex s.l. L3 larvae were observed at 18 hpi, complete spiral encapsulation occurred by 72 hpi. Alive parasites were observed up to 6 mpi. Although the infection of gilthead seabream by Anisakis spp. larvae is feasible, it seems unlikely, especially in aquaculture given the hygienically controlled feeding systems. In the event of infection, the transmission would be unlikely due to the poor condition in which specimens of Anisakis spp. are found. Furthermore, since no larvae were detected in the fish's muscle, human infection seems improbable.

From development to taxonomy: the case of Sciaenacotyle pancerii (Monogenea: Microcotylidae) in the Mediterranean meagre.

The microcotylid Sciaenacotyle pancerii is a pathogenic monogenean infecting Argyrosomus regius, a candidate for species diversification in the Mediterranean aquaculture. Life-history stages of S. pancerii commonly co-occur in field infections, but to date, morphological data have only been provided for oncomiracidia and adults although identifying life-history stages can be useful in infection management. A total of 114 specimens of S. pancerii were analysed to characterize the developmental events and to assess morphological and morphometric variations before and after maturity. The post-larval development of S. pancerii is characterized by: expansion and bifurcation of the gut, loss of the larval haptor, protandrous development of the genitalia and vitellaria formation. The size variability of larval hooks, hamuli and germanium of S. pancerii is firstly reported and dimensional ranges of parasite body, haptor, testes, posteriormost clamps and eggs are widened. The size of most of the diagnostic features of S. pancerii significantly increases after parasite maturity and therefore, only those specimens with more than 116 clamps should be considered for minimising development-related variability in size. The high number of clamps, their fast development and the asymmetry in their size and arrangement suggest that S. pancerii may use a mixed attachment strategy between the closely related microcotylids and heteraxinids. This combination of features may be host related and linked to the gill structure of the sciaenid fish and the phylogenetic position of the genus Sciaenacotyle; distant from other microcotylids while close to heteraxinid species.