Cognitive Fusion Mediates the Relationship between Dispositional Mindfulness and Negative Affects: A Study in a Sample of Spanish Children and Adolescent School Students

Nowadays, mindfulness-based interventions (MBI) have experienced a remarkable development of studies among childhood and adolescent interventions. For this reason, dispositional mindfulness (DM) measures for children and adolescents have been developed to determine the e ectiveness of MBI at this age stage. However, little is known about how key elements of DM (for example, cognitive de/fusion or experiential avoidance that both confirm psychological inflexibility) are involved in the mechanisms of the children and adolescents’ mental health outcomes. This research examined the mediating e ect of cognitive fusion between DM and anxiety and other negative emotional states in a sample of 318 Spanish primary-school students (aged between 8 and 16 years, M = 11.24, SD = 2.19, 50.8% males). Participants completed the AFQ-Y (Avoidance and Fusion Questionnaire for youth), which is a measure of psychological inflexibility that encompasses cognitive defusion and experiential avoidance; CAMM (DM for children and adolescents), PANAS-N (positive and negative a ect measure for children, Spanish version of PANASC), and STAIC (an anxiety measure for children). The study accomplished ethical standards. As MBI relevant literature has suggested, cognitive defusion was a significant mediator betweenDMand symptoms of both negative emotions and anxiety in children and adolescents. However, experiential avoidance did not show any significant mediating relationship. Probably, an improvement of the assessment of experiential avoidance is needed. MBI programs for children and adolescents may include more activities for reducing e ects of the cognitive defusion on their emotional distress

A brief review of reactive gases observations at Izaña Atmospheric Observatory (2006-2009)

Comunicación presentada en: Symposium on Atmospheric Chemistry and Physics at Mountain Sites celebrado del 8 al 10 de junio de 2010 en Interlaken, Suiza

Long Term Ozone Observations at Izaña Atmospheric Observatory (1988-2009)

Comunicación presentada en: Symposium on Atmospheric Chemistry and Physics at Mountain Sites celebrado del 8 al 10 de junio de 2010 en Interlaken, Suiza

Deciphering the record of hyaenic activity in the Early Pleistocene site of Fuente Nueva-3 (Baza Basin, SE Spain)

FN3 is an open air site, dated ~1.4 Ma. Their archaeological levels preserve evidences of human presence, consisting in lithic artefacts and cuts and percussion marks on bones. The lithic remains are associated with abundant macromammals bones with a very wide size range, from proboscideans to small mustelids. Carnivores are represented, mainly, by isolated teeth, bellowing to canids, ursids, felids and hyaenids, and their activity is recorded by the presence of different tooth marks types. However, there exists an important difference in the carnivore record between the levels, consisting in the presence of more than 200 coprolites in the Upper Level, whereas in the Lower Level these elements are practically absent. For the identification of the defecating organism, different analyses have been performed. The morphological study evidences the presence of the seven shape-types of pellets, although the most common morphologies are round, oval and disk. The colour of hyena faeces is also very characteristic, colour analysis of FN3 coprolites shows a predominance of whitish and very pale brown tonalities. To determine the composition, the samples were studied by XRD, XRF and SEM. The results have revealed that the coprolites mostly consist of calcium phosphate. These data are consistent with the expected composition of faeces in an organism that ingests a large amount of bones, in addition, macroscopic observation of the coprolites surface evidence the presence of numerous fragments of digested bones within them. All these features allow us to adscribe the FN3 coprolites to the hyaena Pachycrocuta brevirostris, species of which several teeth have been found at this site.This record manifests a great difference between both archaeological levels, showing in the Upper Level a scenario were hominin and hyaenids coexisted and competed for food resources, whereas in the Lower Level hyaenas were practically absent, and the main modifying agent was early Homo.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Influence of left bundle branch block on the electrocardiographic changes induced by acute coronary artery occlusion of distinct location and duration

Altres ajuts: This work was supported by Spanish Ministerio de Economia y Competitividad, Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, CIBERCV (CB16/11/00276), and Fondo Europeo de Desarrollo Regional (FEDER).Background: Electrocardiographic (ECG) diagnosis of acute myocardial ischemia is hampered in the presence of left bundle branch block (LBBB). Objectives: We analyzed the influence of location and duration of myocardial ischemia on the ECG changes in pigs with LBBB. Methods: LBBB was acutely induced in 14 closed chest anesthetized pigs by local electrical ablation. Thereafter, episodes of 5 min catheter balloon occlusion followed by 10 min reperfusion of the left anterior descending (LAD), left circumflex (LCX), and right (RCA) coronary arteries were done sequentially in 5 pigs. Additionally, a 3-h occlusion of these arteries was performed separately in the other 9 pigs. A 15-lead ECG including leads V7 to V9 was continuously recorded. Results: Ablation induced LBBB showed QRS widening, loss of r wave in V1, and predominant R waves in V2 to V9. After 5 min of ischemia the occluded artery could be identified in all cases: the LAD by R waves and ST elevation in V1-V3; the LCX by both ST segment elevation in II, III, aVF, V7 to V9 and ST segment depression in V1 to V4; and the RCA by ST depression and new S-waves in all precordial leads. Three hours after coronary occlusion, ST segment changes declined progressively and only the LAD occlusion could be reliably recognized. Conclusion: LBBB did not mask the ECG recognition of the occluded coronary artery during the first 60 min of ischemia, but 3 h later only the LAD occlusion could be reliably identified. ST elevation in leads V7 to V9 is specific of LCX occlusion and it could be useful in the diagnosis of acute myocardial ischemia in the presence of LBBB

Ultrasound-assisted extraction of fructans from agave (Agave tequilana Weber var. azul) at different ultrasound powers and solid-liquid ratios

Abstract The effects of ultrasound-assisted extraction (UAE) at different ultrasound power densities (UPDs; 40, 80, and 120 mW/mL) and solid:liquid (S:L) ratio (1:2, 1:3, and 1:6) on the extraction of carbohydrates from Agave tequilana plant of different ages were evaluated. Extracts obtained (6- and 7-year-old plant) were analyzed in the yield of carbohydrates (YC), fructan (FRU) content, simple sugars, fructan profile and the average degree of polymerization (DPn). UPD, S:L ratio, and plant age all affected YC, FRU, and DPn. Maximum YC and FRU were obtained from the older agave with UPD and S:L ratio of 120 mW/mL and 1:6, respectively; while glucose, fructose, and sucrose were highly released from the younger plant. Agave of 7-year-old presented the highest DPn. Fructan degradation occurred at high UPD, increasing the simple sugars and decreasing the DPn. Thermal-traditional extraction without sonication caused more fructan degradation; and overall, ultrasound enhanced fructan extraction and minimized fructan damage, representing a technological alternative for fructan extraction from agave. Keywords: agave; fructans; ultrasound; power density; solid:liquid ratio; plant age. Practical Application: Agave tequilana Weber var. azul plants have significant amounts of fructans. Extraction of these components by alternative methods such as ultrasound could represent advantages, improving the extraction and product quality. This research presents an alternative for the extraction of fructans assisted with ultrasound, evaluating different powers and solid-liquid ratios from agave heads of two different ages. Both variables, as well as age of agave showed a strong effect on fructan extraction. Ultrasound enhanced the extraction and minimized fructan damage, representing a technological alternative

Disease-specific monoclonal antibodies targeting glutamate decarboxylase impair GABAergic neurotransmission and affect motor learning and behavioral functions

Autoantibodies to the smaller isoform of glutamate decarboxylase (GAD) can be found in patients with type 1 diabetes and a number of neurological disorders, including stiff-person syndrome, cerebellar ataxia and limbic encephalitis. The detection of disease-specific autoantibody epitopes led to the hypothesis that distinct GAD autoantibodies may elicit specific neurological phenotypes. We explored the in vitro/in vivo effects of well-characterized monoclonal GAD antibodies. We found that GAD autoantibodies present in patients with stiff person syndrome (n = 7) and cerebellar ataxia (n = 15) recognized an epitope distinct from that recognized by GAD autoantibodies present in patients with type 1 diabetes mellitus (n = 10) or limbic encephalitis (n = 4). We demonstrated that the administration of a monoclonal GAD antibody representing this epitope specificity; (1) disrupted in vitro the association of GAD with γ-Aminobutyric acid containing synaptic vesicles; (2) depressed the inhibitory synaptic transmission in cerebellar slices with a gradual time course and a lasting suppressive effect; (3) significantly decreased conditioned eyelid responses evoked in mice, with no modification of learning curves in the classical eyeblink-conditioning task; (4) markedly impaired the facilitatory effect exerted by the premotor cortex over the motor cortex in a paired-pulse stimulation paradigm; and (5) induced decreased exploratory behavior and impaired locomotor function in rats. These findings support the specific targeting of GAD by its autoantibodies in the pathogenesis of stiff-person syndrome and cerebellar ataxia. Therapies of these disorders based on selective removal of such GAD antibodies could be envisioned.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Sharing food with hyenas: a latrine of Pachycrocuta brevirostris in the Early Pleistocene assemblage of Fuente Nueva-3 (Orce, Baza Basin, SE Spain)

The Early Pleistocene archeological site of Fuente Nueva-3 (FN3) preserves some of the oldest evidence of hominin presence in Western Europe, including a huge assemblage of Oldowan tools and evidence of butchering and marrow processing of large mammal bones. Moreover, there is also evidence of the regular presence of carnivores at the site, including a small proportion of bones that show tooth marks, the majority of which can be attributed to the giant, short-faced hyena Pachycrocuta brevirostris, and there are 220 coprolites, most of them from the Upper Archeological Level. In order to identify the defecating agent, we analyze here the coprolites and compare them with other specimens from the literature and with scats from zoo spotted hyenas (Crocuta crocuta). The morphology, color, size, and chemical composition of the FN3 coprolites allow us to attribute them to the hyena P. brevirostris, which is also represented at the site by fossil specimens. In addition, we evaluate the origin of the accumulation of coprolites and discuss on the role played by the scavenging hyenas in the accumulation and modification of the bone remains unearthed at the site, which allows evaluating the contribution of the giant hyena to this Early Pleistocene site. Finally, based on the lithology of layer 5 of the Upper Archeological Level, fine sands and clays deposited in a salt-lake environment, we hypothesize that this layer may have acted as a quicksand where large-sized animals like elephants were trapped and their carcasses lured scavenging carnivores.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEJunta de AndalucíaGeneralitat de CatalunyaMinisterio de Ciencia e InnovaciónComunidad de Madridpu

Atrial Fibrillation Originating in the Inferior Vena Cava

Recurrence of atrial fibrillation (AF) despite successful isolation of the pulmonary veins (PVs) represents a great challenge. We present a patient with recurrent episodes of paroxysmal AF despite PV isolation in which a non-PV trigger was identified in the inferior vena cava. (Level of Difficulty: Intermediate.

Estabilidad térmica de hidroxiapatitas de calcio dopadas con zinc

Con el objetivo de intentar mejorar las propiedades osteointegradoras de las hidroxiapatitas de calcio se han sintetizado y caracterizado diversas apatitas con distintos grados de sustitución de Ca(II) por otros iones metálicos como Cd(II), Zn(II), Sr(II), Pb(II) y Mg(II). La sustitución de Ca(II) por Zn(II) resulta particularmente interesante dado que ambos cationes resultan ser esenciales y muy abundantes en los sistemas biológicos. Para la obtención del biomaterial en forma de granulados o en bloques, se utiliza un proceso de sinterización de la hidroxiapatita de calcio a partir del tratamiento térmico de la misma. En trabajos previos, se estudiaron, a partir de datos de difracción de rayos X de polvos (DRX) empleando el análisis de Rietveld, las estructuras de apatitas puras y sustituidas con Zn(II), sintetizadas por el método de Hayek y Newesely. Los sólidos analizados mostraron una transformación de fase de monoclínica a hexagonal al agregar una pequeña proporción de Zn(II) al proceso de síntesis, cambio atribuible a la incorporación, simultánea con el Zn(II), de un elevado porcentaje de agua a la estructura, lo cual trajo como resultado una baja estabilidad térmica. Con el objetivo de sintetizar hidroxiapatitas de calcio (CaHap) dopadas con Zn(II) que tuvieran una mayor estabilidad térmica en este trabajo se utilizó un método similar al desarrollado por Gibson y Bonfield para preparar hidroxiapatita de Ca pura (CaHap) e hidroxiapatitas con 3, 5, y 10% en masa de Zn. El material obtenido fue sometido a tratamientos térmicos a 600, 800 y 1000 ºC y caracterizado por espectroscopía de infrarrojo (FTIR) y DRX.Sección: Ciencias Básicas.Facultad de Ingenierí