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1.
Nutrients ; 14(21)2022 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-36364755

RESUMEN

Despite the high prevalence of sports supplement (SS) use, efforts to profile users have not been conclusive. Studies report that 30-95% of recreational exercisers and elite athletes use SS. Research found has mostly focused on demographic and sports variables to profile SS users, but little research has studied the psychological factors that may influence the use of SS. The purpose of this investigation was to classify, describe, and differentiate the profile of users and non-users of SS, considering demographic, sports, and psychological variables. A total of 554 participants completed the questionnaire. Overall, 45% of recreational exercisers and elite athletes reported using supplements. There were significant differences found regarding the use of SS between men and women (51% vs. 49%, p = 0.002; OR = 1.799), and when training 4 or more days per week (p ≤ 0.001; OR = 1.526). Findings regarding the psychological variables have been found in the Adonis Complex. These results indicate that participants with greater concerns regarding physical appearance, tend to be SS users (p = 0.001; OR = 1.200). The results of this study fill a gap in previous research, and provide an approximate profile, including demographic, sports, and psychological variables of SS users.


Asunto(s)
Deportes , Masculino , Humanos , Femenino , Estudios Transversales , Deportes/psicología , Suplementos Dietéticos , Atletas/psicología , Encuestas y Cuestionarios , Prevalencia
2.
Sci Rep ; 9(1): 9409, 2019 06 28.
Artículo en Inglés | MEDLINE | ID: mdl-31253874

RESUMEN

Sponges are an important component of coral reef communities. The present study is the first devoted exclusively to coral reef sponges from Eastern Tropical Pacific (ETP). Eighty-seven species were found, with assemblages dominated by very small cryptic patches and boring sponges such as Cliona vermifera; the most common species in ETP reefs. We compared the sponge patterns from ETP reefs, Caribbean reefs (CR) and West Pacific reefs (WPR), and all have in common that very few species dominate the sponge assemblages. However, they are massive or large sun exposed sponges in CR and WPR, and small encrusting and boring cryptic species in ETP. At a similar depth, CR and WPR had seven times more individuals per m2, and between four (CR) and five times (WPR) more species per m2 than ETP. Perturbation, at local and large scale, rather than biological factors, seems to explain the low prevalence and characteristics of sponge assemblages in ETP reefs, which are very frequently located in shallow water where excessive turbulence, abrasion and high levels of damaging light occur. Other factors such as the recurrence of large-scale phenomena (mainly El Niño events), age of the reef (younger in ETP), isolation (higher in ETP), difficulty to gain recruits from distant areas (higher in ETP), are responsible for shaping ETP sponge communities. Such great differences in sponge fauna between the three basins might have consequences for coral reef structure and dynamics.


Asunto(s)
Biodiversidad , Arrecifes de Coral , Ecosistema , Poríferos , Animales , Región del Caribe , México , Océano Pacífico , Clima Tropical
3.
Pensam. psicol ; 16(1): 95-105, ene.-jun. 2018. tab
Artículo en Español | LILACS | ID: biblio-895207

RESUMEN

Objetivo. Conocer las diferencias en los estilos educativos parentales percibidos por deportistas consumidores de tabaco y cánnabis. Método. La muestra fue de 502 deportistas españoles con una edad media de 27.76 (DE = 9.11). Para analizar los estilos educativos parentales se aplicó el Test Autoevaluativo Multifactorial de Adaptación Infantil (TAMAI); y para excluir del estudio a los participantes aquiescentes se utilizó la Escala de Oviedo de Infrecuencia de Respuesta (INF-OV). Se realizó un estudio descriptivo, transversal. La selección de la muestra se llevó a cabo en línea a través de Google Forms. Resultados. Los deportistas que no consumen tabaco (t = -2.53, p < 0.05) ni cánnabis (t = -3.26, p < 0.01) obtuvieron mayor proteccionismo del padre en la prueba t de student. Los deportistas consumidores de cánnabis, en cambio, obtuvieron mayor restricción del padre (t = 2.40, p < 0.05) en la prueba t de student. En la regresión logística binaria, se identificó una relación entre el no consumo de tabaco diario (OR = 0.39, p < 0.01) y el no consumo de cánnabis (OR = 0.74, p < 0.01) con el proteccionismo paterno. Conclusión. El proteccionismo paterno puede ser un factor protector en el consumo de tabaco y cánnabis en deportistas, mientras que la restricción paterna puede ser un factor que facilite el consumo de cánnabis.


Objective. To know the differences in perceived parental education styles according to athletes who are consumers of tobacco and cannabis. Method. The sample consisted of 502 athletes from Spain with an age range of 27.76 (DT = 9.11). In order to measure the parental education styles, the "Multifactor Self-Assessment Test of Child Adjustment" (TAMAI) was administered; to measure the acquiescence, the Oviedo Scale of Infrequency of Response (INF-OV)was administered. The study was a cross-sectional descriptive study and it was conducted online through Google Forms. Results. Athletes who do not consume tobacco (t = -2.53, p < 0.05) and cannabis (t = -3.26, p < 0.01) had greater levels of father protectionism in independent samples t test. Moreover, athletes who were cannabis consumers scored greater levels of father restriction (t = 2.40, p < 0.05) in independent samples t test. On the other hand, more father protectionism demonstrated a relationship with not consuming tobacco (OR = 0.39, p < 0.01) or cannabis (OR = 0.74, p < 0.00). Conclusion. The father protectionism could be a protective factor with regard to consumption of tobacco and cannabis in athletes. Furthermore, father restriction could be a negative factor that may increase cannabis consumption in athletes.


Escopo. Conhecer as diferencias nos estilos educativos parentais percebidos por desportistas consumidores de tabaco e cannabis. Metodologia. A amostra foi de 502 esportistas espanhóis com uma idade media de 27.76 (DE = 9.11). Para analisar os estilos educativos parentais foi aplicado o Test Auto-avaliativo Multifatorial de Adaptação Infantil (TAMAI); e para excluir do estudo aos participantes aquiescentes foi utilizada a escada de Oviedo de Infrequência de Resposta (INF-OV). Foi realizado um estudo descritivo, transversal e a seleção da amostra foi feita em linha a través de Google Forms. Resultados. Os esportistas que não consumem tabaco (t = -2.53, p < 0.05) nem cannabis (t = -3.26, p < 0.01), obtiveram maior protecionismo do pai na prova t de student . Os esportistas consumidores de cannabis, em troca, obtiveram maior restrição do pai (t = 2.40, p < 0.05) na prova t de student. Na regressão logística binária, foi identificada uma relação entre o não consumo de tabaco diário (OR = 0.39, p < 0.01) e o não consumo de cannabis (OR = 0.74, p < 0.01) com o protecionismo paterno. Conclusão. O protecionismo paterno pode ser um fator protetor no consumo de tabaco e cannabis em esportistas, enquanto que a restrição paterna pode ser um fator que facilite o consumo de cannabis.


Asunto(s)
Humanos , Educación , Fumar Tabaco , Padres , Deportes , Atletas
4.
Zootaxa ; 4370(5): 451-491, 2018 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-29689819

RESUMEN

Excavating sponges are one of the main groups of bioeroders in coral reefs. Their diversity has been thoroughly studied in some regions: in the Caribbean, the Mediterranean, and the Indo-Pacific, including the Mexican Pacific. However, there is a lack of information from the Pacific of Central America, with only a few records from Panama and Costa Rica. This study provides additional distributional records and taxonomic descriptions of species collected between 2011 and 2016 at nine localities along the Pacific coast of El Salvador, Nicaragua, Costa Rica and Panama. A total of fourteen species of excavating sponges from three orders, three families, and five genera are considered valid in this area. Nine are new records for Central America, six are new records for El Salvador, three are new records for Nicaragua and eleven are new records for Costa Rica. The species collected from Panama were already recorded before. The species here described are Cliona amplicavata, Cliona californiana, Cliona euryphylle, Cliona microstrongylata, Cliona aff. mucronata, Cliona pocillopora, Cliona tropicalis, Cliona vermifera, Cliothosa tylostrongylata, Pione cf. carpenteri, Pione mazatlanensis, Thoosa calpulli, Thoosa mismalolli and Siphonodictyon crypticum. We also reviewed the literature related to excavating sponges from Central America, and the taxonomic status of respective species was updated. We provide a faunistic record of 14 excavating sponge species for Central America. Our data are expected to be useful for management and conservation purposes.


Asunto(s)
Poríferos , Animales , Región del Caribe , América Central , Costa Rica , El Salvador , México , Nicaragua , Panamá
5.
Ter. psicol ; 31(2): 187-195, jul. 2013. tab
Artículo en Español | LILACS | ID: lil-684046

RESUMEN

Los programas de prevención del rechazo social en la infancia son todavía muy escasos. El objetivo de este estudio fue evaluar los efectos de un programa de intervención cognitivo-conductual breve basado en el desarrollo de competencias socio-emocionales, diseñado para prevenir el rechazo social infantil y patologías asociadas. Para ello se siguió un diseño cuasiexperimental pretest-postest con grupo control no equivalente. La muestra se compuso de 94 estudiantes de 8 a 12 años. El tratamiento consistió en un programa multicomponente cognitivo-conductual aplicado en grupo, con una frecuencia semanal y un total de 6 sesiones de 60 minutos cada una. Los resultados apoyaron la eficacia del programa de desarrollo de competencias infantil, obteniendo efectos positivos en las medidas de ansiedad, depresión, inteligencia emocional y estatus social del sociograma. Estos datos muestran la eficacia y necesidad de prevenir la aparición del rechazo social y patologías asociadas en la infancia en el contexto escolar.


Prevention programs for social rejection in children are still scarce. The aim of this study was to determine the effectiveness of a cognitive-behavioral intervention program, based on development of socio-emotional competencies, designed to prevent child social rejection and associated diseases. We followed a pretest-posttest non-equivalent control group quasi-experimental design. The sample consisted of 94 students between 8 and 12 years. Treatment consisted of a multicomponent cognitive-behavioral program, administered on a group basis, with one weekly session lasting 60 minutes each one, for a total of 6 sessions. The results supported the effectiveness of skill development program for children, showing positive treatment effects on measures of anxiety, depression, emotional intelligence and social status by sociogram. These data show the effectiveness and need of preventing the emergence of childhood social rejection and associated diseases in school setting.


Asunto(s)
Humanos , Masculino , Femenino , Niño , Aislamiento Social , Psicoterapia Breve , Rechazo en Psicología , Terapia Cognitivo-Conductual , Trastornos Mentales/prevención & control , Inteligencia Emocional
6.
PLoS One ; 7(8): e42049, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22912682

RESUMEN

Integrative taxonomy provides a major approximation to species delimitation based on integration of different perspectives (e.g. morphology, biochemistry and DNA sequences). The aim of this study was to assess the relationships and boundaries among Eastern Pacific Aplysina species using morphological, biochemical and molecular data. For this, a collection of sponges of the genus Aplysina from the Mexican Pacific was studied on the basis of their morphological, chemical (chitin composition), and molecular markers (mitochondrial COI and nuclear ribosomal rDNA: ITS1-5.8-ITS2). Three morphological species were identified, two of which are new to science. A. clathrata sp. nov. is a yellow to yellow-reddish or -brownish sponge, characterized by external clathrate-like morphology; A. revillagigedi sp. nov. is a lemon yellow to green, cushion-shaped sometimes lobate sponge, characterized by conspicuous oscules, which are slightly elevated and usually linearly distributed on rims; and A. gerardogreeni a known species distributed along the Mexican Pacific coast. Chitin was identified as the main structural component within skeletons of the three species using FTIR, confirming that it is shared among Verongida sponges. Morphological differences were confirmed by DNA sequences from nuclear ITS1-5.8-ITS2. Mitochondrial COI sequences showed extremely low but diagnostic variability for Aplysina revillagigedi sp. nov., thus our results corroborate that COI has limited power for DNA-barcoding of sponges and should be complemented with other markers (e.g. rDNA). Phylogenetic analyses of Aplysina sequences from the Eastern Pacific and Caribbean, resolved two allopatric and reciprocally monophyletic groups for each region. Eastern Pacific species were grouped in general accordance with the taxonomic hypothesis based on morphological characters. An identification key of Eastern Pacific Aplysina species is presented. Our results constitute one of the first approximations to integrative taxonomy, phylogeny and evolutionary biogeography of Eastern Pacific marine sponges; an approach that will significantly contribute to our better understanding of their diversity and evolutionary history.


Asunto(s)
Clasificación/métodos , Filogenia , Poríferos/clasificación , Animales , Región del Caribe , ADN Mitocondrial/genética , Ecosistema , Evolución Molecular , México , Océano Pacífico , Poríferos/anatomía & histología , Poríferos/genética , Análisis de Secuencia de ADN
7.
J Phycol ; 45(1): 81-90, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27033647

RESUMEN

The association between the red macroalga Jania adhaerens J. V. Lamour. and the sponge Haliclona caerulea is the most successful life-form between 2 and 4 m depth in Mazatlán Bay (Mexican Pacific). J. adhaerens colonizes the rocky intertidal area and penetrates into deeper areas only when it lives in association with H. caerulea. The aposymbiotic form of the sponge has not been reported in the bay. To understand the ecological success of this association, we examined the capacity of J. adhaerens to acclimate in Mazatlán Bay using transplant experiments. The transplanted aposymbiotic J. adhaerens did not survive the first 2 weeks; however, J. adhaerens when living in association with H. caerulea, acclimated easily to depth, showing no sign of mortality during the 103 d of the experiment. We conclude that the ability of J. adhaerens to colonize in deeper areas in this hydrodynamic environment may in part rely on the protection provided by the sponge to the algal canopy. Both species contribute to the shape of the associated form. Nevertheless, the morphological variation in the association appears to be dominated by the variation in J. adhaerens canopy to regulate pigment self-shading under light-limited conditions and/or tissue resistance under high hydrodynamics. Consequently, our results are consistent with light as the abiotic controlling factor, which regulates the lower depth distribution of the association in Mazatlán Bay, through limiting the growth rate of J. adhaerens. Hydrodynamics may determine the upper limit of the association by imposing high mass losses.

8.
J Exp Biol ; 211(Pt 17): 2827-31, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18723541

RESUMEN

Species richness (S) and frequency of invasion (IF) by boring sponges on living colonies of Pocillopora spp. from National Park Isla Isabel (México, East Pacific Ocean) are presented. Twelve species belonging to the genera Aka, Cliona, Pione, Thoosa and Spheciospongia were found, and 56% of coral colonies were invaded by boring sponges, with Cliona vermifera Hancock 1867 being the most abundant species (30%). Carbonate dissolution rate and sediment production were quantified for C. vermifera and Cliona flavifodina Rützler 1974. Both species exhibited similar rates of calcium carbonate (CaCO3) dissolution (1.2+/-0.4 and 0.5+/-0.2 kg CaCO3 m(-2) year(-1), respectively, mean +/- s.e.m.), and sediment production (3.3+/-0.6 and 4.6+/-0.5 kg CaCO3 m(-2) year(-1)), resulting in mean bioerosion rates of 4.5+/-0.9 and 5.1+/-0.5 kg CaCO3 m(-2) year(-1), respectively. These bioerosion rates are close to previous records of coral calcification per unit of area, suggesting that sponge bioerosion alone can promote disequilibrium in the reef accretion/destruction ratio in localities that are heavily invaded by boring sponges. The proportion of dissolved material by C. vermifera and C. flavifodina (27 and 10.2%, respectively) confirms that chemical bioerosion plays an important role in sponge bioerosion and in the CaCO3 cycle in coral reefs.


Asunto(s)
Antozoos/fisiología , Ecosistema , Poríferos/fisiología , Análisis de Varianza , Animales , Antozoos/metabolismo , Carbonato de Calcio/metabolismo , Sedimentos Geológicos/análisis , México , Océano Pacífico , Poríferos/metabolismo
9.
Rev. biol. trop ; Rev. biol. trop;55(2): 499-507, jun. 2007. ilus, graf, tab
Artículo en Español | LILACS | ID: lil-637598

RESUMEN

Diet of the ascidian Ecteinascidia turbinata (Ascidiacea: Perophoridae) in two mangrove areas of Cuba. Stomach contents of 88 zooids of Ecteinascidia turbinata Herdman 1880 and the qualitative and quantitative composition of phytoplankton in the water column were studied in Santa Fe (North Coast of Havana) and Punta del Este (SW of Cuba). We identified 59 microalgal species and four tintinnids in the stomachs. Cell size was 75-165 µm in length and 2-105 µm in width. There were not significant differences in microalgal diversity in the water column in the two locations. In both locations, the diatoms had the largest number of species and individuals in stomachs and water. In Santa Fe, dinoflagellate biomass was larger in water and stomach contents, while in Punta del Este the contribution of each group to the stomach content was similar to that of the water column. This species filters in a constant and irregular way during the day, independently of food availability. Rev. Biol. Trop. 55 (2): 499-507. Epub 2007 June, 29.


Se estudiaron los contenidos estomacales de 88 zooides de Ecteinascidia turbinata Herdman 1880 y la composición cualitativa y cuantitativa del fitoplancton en la columna de agua en Santa Fe (Litoral Norte de la Habana) y Punta del Este (SW de Cuba). En el contenido estomacal de la ascidia se identificaron 59 especies de microalgas y cuatro tintínidos. El tamaño de las células varió entre 75 y 165 µm de largo y de 2 a 105 µm de ancho. No se encontraron diferencias significativas en la diversidad de especies de microalgas en la columna de agua de las dos localidades. Las diatomeas tuvieron la mayor cantidad de especies y el mayor número de individuos, tanto en los estómagos como en la columna de agua en ambas localidades. La biomasa de dinoflagelados en Santa Fe fue mayor en agua y estómagos. En Punta del Este el aporte de cada grupo al contenido estomacal es similar al encontrado en la columna de agua. Esta especie filtra de forma constante e irregular durante las 24 horas del día, independientemente de la disponibilidad de alimento.


Asunto(s)
Animales , Preferencias Alimentarias/fisiología , Contenido Digestivo , Urocordados/fisiología , Cuba , Rhizophoraceae , Urocordados/clasificación
10.
Rev. biol. trop ; Rev. biol. trop;55(1): 247-254, Mar. 2007. graf, mapas
Artículo en Español | CUMED | ID: cum-41815

RESUMEN

Permanently submerged mangrove roots (Rhizophora mangle) are the main habitat of the ascidian Ecteinascidia turbinata in Cuba. It was occasionally found on black coral (Antiphates caribeana) between 22 and 38 meters deep. This species exhibits a wide distribution in all the mangrove keys surrounding the Island of Cuba but does not occur in riparian or fringing mangroves. Populations of this species are abundant in Cuba: in 75 percent of the 58 localities sampled the species was present and in 57 percent more than 50 percent of the roots held at least one colony. The highest colony densities were found in the northern coast of Pinar del Rio province with values near one colony per lineal meter of mangrove root. We found the highest density (1.46 col/m) and greatest biomass at Jutías Key, with values between 25 and 660 g/m. The average of wet biomass in the studied mangroves was 73.63 g/m(AU)


Asunto(s)
Animales , Ecosistema , Raíces de Plantas , Rhizophoraceae , Urocordados/fisiología , Biomasa , Cuba , Densidad de Población , Dinámica Poblacional , Urocordados/clasificación
11.
Rev. biol. trop ; Rev. biol. trop;55(1): 247-254, Mar. 2007. graf, mapas
Artículo en Español | LILACS | ID: lil-501478

RESUMEN

Permanently submerged mangrove roots (Rhizophora mangle) are the main habitat of the ascidian Ecteinascidia turbinata in Cuba. It was occasionally found on black coral (Antiphates caribeana) between 22 and 38 meters deep. This species exhibits a wide distribution in all the mangrove keys surrounding the Island of Cuba but does not occur in riparian or fringing mangroves. Populations of this species are abundant in Cuba: in 75% of the 58 localities sampled the species was present and in 57% more than 50% of the roots held at least one colony. The highest colony densities were found in the northern coast of Pinar del Rio province with values near one colony per lineal meter of mangrove root. We found the highest density (1.46 col/m) and greatest biomass at Jutías Key, with values between 25 and 660 g/m. The average of wet biomass in the studied mangroves was 73.63 g/m.


Asunto(s)
Animales , Ecosistema , Raíces de Plantas , Rhizophoraceae , Urocordados/fisiología , Biomasa , Cuba , Densidad de Población , Dinámica Poblacional , Urocordados/clasificación
12.
Rev Biol Trop ; 55(1): 247-54, 2007 Mar.
Artículo en Español | MEDLINE | ID: mdl-18457133

RESUMEN

Permanently submerged mangrove roots (Rhizophora mangle) are the main habitat of the ascidian Ecteinascidia turbinata in Cuba. It was occasionally found on black coral (Antiphates caribeana) between 22 and 38 meters deep. This species exhibits a wide distribution in all the mangrove keys surrounding the Island of Cuba but does not occur in riparian or fringing mangroves. Populations of this species are abundant in Cuba: in 75% of the 58 localities sampled the species was present and in 57% more than 50% of the roots held at least one colony. The highest colony densities were found in the northern coast of Pinar del Rio province with values near one colony per lineal meter of mangrove root. We found the highest density (1.46 col/m) and greatest biomass at Jutías Key, with values between 25 and 660 g/m. The average of wet biomass in the studied mangroves was 73.63 g/m.


Asunto(s)
Ecosistema , Raíces de Plantas , Rhizophoraceae , Urocordados/fisiología , Animales , Biomasa , Cuba , Densidad de Población , Dinámica Poblacional , Urocordados/clasificación
13.
Rev Biol Trop ; 55(2): 499-507, 2007 Jun.
Artículo en Español | MEDLINE | ID: mdl-19069762

RESUMEN

Diet of the ascidian Ecteinascidia turbinata (Ascidiacea: Perophoridae) in two mangrove areas of Cuba. Stomach contents of 88 zooids ofEcteinascidia turbinata Herdman 1880 and the qualitative and quantitative composition of phytoplankton in the water column were studied in Santa Fe (North Coast of Havana) and Punta del Este (SW of Cuba). We identified 59 microalgal species and four tintinnids in the stomachs. Cell size was 75-165 microm in length and 2-105 microm in width. There were not significant differences in microalgal diversity in the water column in the two locations. In both locations, the diatoms had the largest number of species and individuals in stomachs and water. In Santa Fe, dinoflagellate biomass was larger in water and stomach contents, while in Punta del Este the contribution of each group to the stomach content was similar to that of the water column. This species filters in a constant and irregular way during the day, independently of food availability.


Asunto(s)
Preferencias Alimentarias/fisiología , Contenido Digestivo , Urocordados/fisiología , Animales , Cuba , Rhizophoraceae , Urocordados/clasificación
14.
Mar Pollut Bull ; 44(7): 605-10, 2002 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12222883

RESUMEN

Biological quality in a bay affected by man's activities was evaluated by means of the composition of assemblages of sponges and ascidians. Our results showed that the structure of these two groups of filter-feeders aided in discriminating between undisturbed and disturbed areas, establishing different "environmental health categories" from moderately to strongly disturbed areas, and in ascertaining the extension of the area of each "health category". We were able to divide the bay into four zones based on type of disturbance or anthropogenic source: (1) stations free of any source of disturbance, (2) stations under moderate disturbance, located close to industrial ports, millworks, etc., (3) stations that are under the direct influence of industrial wastes such as a power station and oil refinery, and (4) stations near strongly disturbed areas, influenced directly by harmful steelworks activities. We differentiated clearly between four large species assemblages, and related the composition of these assemblages to different kinds of disturbances. Thus, these species could be used to manage the marine environment in this bay by comparing the observed fauna, with expected fauna in an unstressed site. Moreover, the joint presence of the sponge Cliona vastifica and tunicate Policitor adriaticum seems always to indicate a more or less pristine environmental situation, functioning as bioindicators of normal conditions. We think that the use of specific bioindicators for monitoring disturbance is a valid tool to establish baselines to predict impacts associated with industrial development in many marine ecosystems. The advantages to monitoring communities on hard rocks versus sandy or muddy bottoms are also commented upon.


Asunto(s)
Ecosistema , Monitoreo del Ambiente/métodos , Residuos Industriales/efectos adversos , Poríferos , Urocordados , Contaminantes del Agua/efectos adversos , Animales , Biomarcadores , Ambiente , Valores de Referencia
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