262 research outputs found

    Ediacaran discs from South America: probable soft-bodied macrofossils unlock the paleogeography of the Clymene Ocean

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    The origin, affinity and paleoecology of macrofossils of soft-bodied organisms of the terminal Ediacaran Period have been highly debated. Previous discoveries in South America are restricted to small shelly metazoans of the Nama Assemblage. Here we report for the first time the occurrence of discoidal structures from the Upper Ediacaran Cerro Negro Formation, La Providencia Group, Argentina. Specimens are preserved in tabular sandstones with microbially-induced sedimentary structures. Flute marks and linear scours at the base of the sandstone layers indicate deposition under high energy, episodic flows. Stratigraphic, sedimentologic, petrographic and taphonomic analyses indicate that the origin of these structures is not related to abiotic process. Preservational and morphological features, as invagination and the presence of radial grooves, indicate that they resemble typical morphs of the Aspidella plexus. The large number of small-sized individuals and the wide range of size classes with skewed distribution suggest that they lived in high-density communities. The presence of Aspidella in the Cerro Negro Formation would represent the first reliable record of Ediacaran soft-bodied organisms in South America. It also supports the paleogeographic scenario of the Clymene Ocean, in which a shallow sea covered part of the southwest Gondwana at the end of the Ediacaran.Facultad de Ciencias Naturales y MuseoCentro de Investigaciones Geológica

    Importancia del zinc durante la maduración <i>in vitro</i> de ovocitos: consecuencias en el desarrollo embrionario temprano

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    El objetivo del presente trabajo fue evaluar la influencia del agregado de Zn durante la maduración in vitro (MIV) de ovocitos, sobre la capacidad de desarrollo embrionario posterior hasta el estadio de blastocisto.Facultad de Ciencias Médica

    Complex multiple risk intervention to promote healthy behaviours in people between 45 to 75 years attended in primary health care (EIRA study): study protocol for a hybrid trial

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    CDATA[CDATA[Background: Health promotion is a key process of current health systems Primary Health Care (PHC) is the ideal setting for health promotion but multifaceted barriers make its integration difficult in the usual care. The majority of the adult population engages two 01 more risk behaviours, that is why a multiple intervention might be more effective and efficient The primary objectives are to evaluate the effectiveness, the cost effectiveness and an implementation strategy of a complex multiple risk intervention to promote healthy behaviours in people between 45 to 75 years attended in PHC. CDATA[CDATA[Methods: This study is a cluster randomised controlled hybrid type 2 trial with two parallel groups comparing a complex multiple risk behaviour intervention with usual care It will be carried out in 26 PHC centres in Spam The study focuses on people between 45 and 75 years who carry out two or more of the following unhealthy behaviours tobacco use, low adherence to the Mediterranean dietary pattern or insufficient physical activity level The intervention is based on the Transtheoretical Model and it will be made by physicians and nurses in the routine care of PHC practices according to the conceptual framework of the ''5A''s" It will have a maximum duration of 12 months and it will be carried out to three different levels (individual, group and community) Incremental cost per quality adjusted life year gamed measured by the tanffs of the EuioQo! 5D questionnaire will be estimated. The implementation strategy is based on the ''Consolidated Framework for Implementation Research, a set of discrete implementation strategies and an evaluation framework. CDATA[CDATA[Discussion: EIRA study will determine the effectiveness and cost effectiveness of a complex multiple risk intervention and will provide a better understanding of implementation processes of health promotion interventions in PHC setting. It may contribute to increase knowledge about the individual and structural barriers that affect implementation of these interventions and to quantify the contextual factors that moderate the effectiveness of implementation

    Cards, an educational material on gender, power and empowerment

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    Conjunto de 25 fichas pedagógicas con definiciones de conceptos clave relacionados con el género e ilustraciones a través de historias personales acompañadas de una descripción de actividades que conducen a la construcción de las “fichas” y una actividad de uso de las fichas para el aprendizaje.Set of 25 pedagogical cards with definitions of key concepts related to gender and concrete illustration through personal stories.Depto. de Didáctica de las Lenguas, Artes y Educación FísicaFac. de EducaciónTRUEComisión Europeapu

    Multiple health behaviour change primary care intervention for smoking cessation, physical activity and healthy diet in adults 45 to 75 years old (EIRA study): a hybrid effectiveness-implementation cluster randomised trial

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    Methods: A cluster randomised effectiveness-implementation hybrid trial-type 2 with two parallel groups was conducted in 25 Spanish Primary Health Care (PHC) centres (3062 participants): 12 centres (1481 participants) were randomised to the intervention and 13 (1581 participants) to the control group (usual care). The intervention was based on the Transtheoretical Model and focused on all target behaviours using individual, group and community approaches. PHC professionals made it during routine care. The implementation strategy was based on the Consolidated Framework for Implementation Research (CFIR). Data were analysed using generalised linear mixed models, accounting for clustering. A mixed-methods data analysis was used to evaluate implementation outcomes (adoption, acceptability, appropriateness, feasibility and fidelity) and determinants of implementation success. Results: 14.5% of participants in the intervention group and 8.9% in the usual care group showed a positive change in two or all the target behaviours. Intervention was more effective in promoting dietary behaviour change (31.9% vs 21.4%). The overall adoption rate by professionals was 48.7%. Early and final appropriateness were perceived by professionals as moderate. Early acceptability was high, whereas final acceptability was only moderate. Initial and final acceptability as perceived by the participants was high, and appropriateness moderate. Consent and recruitment rates were 82.0% and 65.5%, respectively, intervention uptake was 89.5% and completion rate 74.7%. The global value of the percentage of approaches with fidelity ≥50% was 16.7%. Eight CFIR constructs distinguished between high and low implementation, five corresponding to the Inner Setting domain. Conclusions: Compared to usual care, the EIRA intervention was more effective in promoting MHBC and dietary behaviour change. Implementation outcomes were satisfactory except for the fidelity to the planned intervention, which was low. The organisational and structural contexts of the centres proved to be significant determinants of implementation effectiveness

    Pharmaceutical intervention in the usage of inhalers with COPD patients that have an appointment in a health center to do an spirometry

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    Background: the usage of inhalers is something complex. This work with COPD patients pretends that, after the pharmacist intervention, the correct usage of these drugs is guaranteed so as to improve the quality of life.  Methods: the nurse set a date to do an spirometry to the patients. On the other hand, the pharmacist assessed the usage of the inhalers and carried out the adherence and quality of life tests. Three months after, the patients came back to the consultation and the pharmacist repeated the same procedure to detect any possible change after the intervention. Results: on those patients that attended both appointments, it was seen that there were statistically significant changes between the adherence punctuation regarding both appointments. The average of punctuation is higher in the second appointment (49.09) in respect to the first one (46.45), this is a significant difference with a p<0.05. The quality of life was the same in both appointments and the errors average in the usage of inhalators in the second appointment decreased (1773) significantly in respect to the errors average in the first appointment (4727). Conclusion: the intervention of a pharmacist in a multidisciplinary team to the following of COPD patients is advantageous to these patients, mainly in relation to the usage of inhalers and the adherence to treatment

    Pharmaceutical intervention in the usage of inhalers with COPD patients that have an appointment in a health center to do an spirometry

    Get PDF
    Background: the usage of inhalers is something complex. This work with COPD patients pretends that, after the pharmacist intervention, the correct usage of these drugs is guaranteed so as to improve the quality of life.  Methods: the nurse set a date to do an spirometry to the patients. On the other hand, the pharmacist assessed the usage of the inhalers and carried out the adherence and quality of life tests. Three months after, the patients came back to the consultation and the pharmacist repeated the same procedure to detect any possible change after the intervention. Results: on those patients that attended both appointments, it was seen that there were statistically significant changes between the adherence punctuation regarding both appointments. The average of punctuation is higher in the second appointment (49.09) in respect to the first one (46.45), this is a significant difference with a p<0.05. The quality of life was the same in both appointments and the errors average in the usage of inhalators in the second appointment decreased (1773) significantly in respect to the errors average in the first appointment (4727). Conclusion: the intervention of a pharmacist in a multidisciplinary team to the following of COPD patients is advantageous to these patients, mainly in relation to the usage of inhalers and the adherence to treatment

    Highlights from the Pierre Auger Observatory

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    The Pierre Auger Observatory is the world's largest cosmic ray observatory. Our current exposure reaches nearly 40,000 km2^2 str and provides us with an unprecedented quality data set. The performance and stability of the detectors and their enhancements are described. Data analyses have led to a number of major breakthroughs. Among these we discuss the energy spectrum and the searches for large-scale anisotropies. We present analyses of our Xmax_{max} data and show how it can be interpreted in terms of mass composition. We also describe some new analyses that extract mass sensitive parameters from the 100% duty cycle SD data. A coherent interpretation of all these recent results opens new directions. The consequences regarding the cosmic ray composition and the properties of UHECR sources are briefly discussed.Comment: 9 pages, 12 figures, talk given at the 33rd International Cosmic Ray Conference, Rio de Janeiro 201
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