575 research outputs found

    La Primera Guerra Mundial en los libros de texto de España y el Reino Unido: un estudio comparativo de competencias, enfoques historiográficos y la secuencia de las actividades

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    This study compares a sample of Spanish and British textbooks to analyse how they present the topic of the First World War, a conflict that has distinct meanings in the national memory of both countries. With this aim, activities from the chosen textbooks are quantitively assessed with reference to two main variables: historiographical focus and the cognitive level required to complete them. To this we add another objective: to associate these variables with the position of different activities within the didactic sequence embedded in each textbook. The results confirm that both Spanish and British textbooks dedicate a large part of their activities to political-institutional history and military events. However, British books also incorporate a strong element of the history of everyday life, women’s history and “history from below”. In general, activities in British textbooks require a higher cognitive level than Spanish ones. Finally, introduction, extension and specific skills-based activities are more likely to require a high cognitive level than those found in the main body of a given teaching unit.  El presente análisis compara un muestreo de libros de texto españoles y británicos para comprender de qué manera presentan la Primera Guerra Mundial. Se trata de un tema con significados muy distintos en la memoria nacional de los dos países. Con tal fin, se valoran de modo cuantitativo las actividades propuestas al alumnado en función de dos variables principales: los enfoques historiográficos y el nivel cognitivo que se exige. Además, se plantea el objetivo de relacionar dichas variables con su ubicación dentro de la secuencia didáctica plasmada en cada manual. Los resultados confirman que tanto los manuales españoles como los británicos dedican una buena parte de sus actividades a la historia político-institucional y a los acontecimientos militares. No obstante, los textos británicos también incorporan una fuerte vertiente de la historia de la vida cotidiana, la historia de las mujeres y de la “historia desde abajo”. En general, las actividades en los manuales británicos exigen un nivel cognitivo más alto que los manuales españoles. Finalmente, las actividades de apertura, de ampliación o para trabajar competencias específicas tienen más posibilidades de exigir un nivel cognitivo alto que las asociadas al cuerpo principal del texto

    Los inmigrantes españoles en Concepción (Paraguay). : Entre la Guerra Guazú y la reconstrucción nacional (1869-1932).

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    This paper analyses the Spanish community in Concepción from the end of the Triple Alliance War to the Chaco War (1869-1932). The immediate post-war period (1869-1879), reconstruction strategies and the arrival of the first immigrants are examined first. The paper then considers the economic development that Concepción experienced between 1880 and 1898, as well as the role played by Spanish residents in this process. Finally, attention is given to the architectural, associative, infrastructural and productive modernisation of the city and the broader region of Concepción (the modern Departments of Concepción, Amambay and northern San Pedro) between 1899 and 1932, once again with reference to Spanish immigration.El presente trabajo analiza el colectivo español en Concepción entre finales de la Guerra de la Triple Alianza y la Guerra del Chaco (1869-1932). La investigación se desarrolla tratando primero la inmediata posguerra (1869-1879), las estrategias de reconstrucción y la llegada de los primeros inmigrantes. Posteriormente, se somete a consideración la consolidación económica que experimentó la villa de Concepción entre 1880 y 1898 así como el papel ejercido por los españoles en este proceso. Finalmente, y tomando también como eje la aportación de la inmigración española, versa sobre la modernización arquitectónica, asociativa, infraestructural y productiva de la ciudad y el interior de la zona de Concepción (actuales Departamentos de Concepción, Amambay y el norte de San Pedro) entre 1899 y 1932

    A lack of empirical evidence on sport officials’ mental health: a scoping review

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    Sport officials—who are essential to organized sport—are tasked with applying competition rules, maintaining fair competitions, and ensuring athlete safety. However, sport officials experience stress, burnout, and non-accidental violence, with incidence of these events increasing worldwide. This has led to rising attrition rates and recruitment issues among sport officials, with many sport organizations concerned for their operational capacity. Possibly, the effects of stress, burnout, and non-accidental violence contribute to sport officials’ negative mental health outcomes. To develop a clear understanding of how sport officials’ mental health is affected by their occupation, it is necessary to identify the mental health outcomes they experience, and to what extent. The purpose of this scoping review was to identify and examine the empirical research surrounding sport officials’ mental health. Using Arksey and O’Malley’s (2005) framework, 1206 articles were identified across three databases: PubMed, Web of Science, SportDiscus, PsycINFO. Following screening, 18 studies met the inclusion criteria for exploring sport officials’ mental health. Participants (N = 7941) in the included studies were mainly European male soccer and basketball referees. Most studies utilized quantitative inquiry (n = 15) rather than qualitative methods (n = 2) or framework development (n = 1). The research demonstrates that sport officials frequently experience negative mental health outcomes including anxiety, depression, burnout, lower mental health literacy, and high levels of stigmatization. These outcomes are influenced by gender, age, and experience. Researchers should continue examining how this profession impacts sport officials’ mental health and implement effective management strategies

    Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

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    Background Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy

    Multiple novel prostate cancer susceptibility signals identified by fine-mapping of known risk loci among Europeans

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    Genome-wide association studies (GWAS) have identified numerous common prostate cancer (PrCa) susceptibility loci. We have fine-mapped 64 GWAS regions known at the conclusion of the iCOGS study using large-scale genotyping and imputation in 25 723 PrCa cases and 26 274 controls of European ancestry. We detected evidence for multiple independent signals at 16 regions, 12 of which contained additional newly identified significant associations. A single signal comprising a spectrum of correlated variation was observed at 39 regions; 35 of which are now described by a novel more significantly associated lead SNP, while the originally reported variant remained as the lead SNP only in 4 regions. We also confirmed two association signals in Europeans that had been previously reported only in East-Asian GWAS. Based on statistical evidence and linkage disequilibrium (LD) structure, we have curated and narrowed down the list of the most likely candidate causal variants for each region. Functional annotation using data from ENCODE filtered for PrCa cell lines and eQTL analysis demonstrated significant enrichment for overlap with bio-features within this set. By incorporating the novel risk variants identified here alongside the refined data for existing association signals, we estimate that these loci now explain ∼38.9% of the familial relative risk of PrCa, an 8.9% improvement over the previously reported GWAS tag SNPs. This suggests that a significant fraction of the heritability of PrCa may have been hidden during the discovery phase of GWAS, in particular due to the presence of multiple independent signals within the same regio

    Analysis of shared heritability in common disorders of the brain

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    ience, this issue p. eaap8757 Structured Abstract INTRODUCTION Brain disorders may exhibit shared symptoms and substantial epidemiological comorbidity, inciting debate about their etiologic overlap. However, detailed study of phenotypes with different ages of onset, severity, and presentation poses a considerable challenge. Recently developed heritability methods allow us to accurately measure correlation of genome-wide common variant risk between two phenotypes from pools of different individuals and assess how connected they, or at least their genetic risks, are on the genomic level. We used genome-wide association data for 265,218 patients and 784,643 control participants, as well as 17 phenotypes from a total of 1,191,588 individuals, to quantify the degree of overlap for genetic risk factors of 25 common brain disorders. RATIONALE Over the past century, the classification of brain disorders has evolved to reflect the medical and scientific communities' assessments of the presumed root causes of clinical phenomena such as behavioral change, loss of motor function, or alterations of consciousness. Directly observable phenomena (such as the presence of emboli, protein tangles, or unusual electrical activity patterns) generally define and separate neurological disorders from psychiatric disorders. Understanding the genetic underpinnings and categorical distinctions for brain disorders and related phenotypes may inform the search for their biological mechanisms. RESULTS Common variant risk for psychiatric disorders was shown to correlate significantly, especially among attention deficit hyperactivity disorder (ADHD), bipolar disorder, major depressive disorder (MDD), and schizophrenia. By contrast, neurological disorders appear more distinct from one another and from the psychiatric disorders, except for migraine, which was significantly correlated to ADHD, MDD, and Tourette syndrome. We demonstrate that, in the general population, the personality trait neuroticism is significantly correlated with almost every psychiatric disorder and migraine. We also identify significant genetic sharing between disorders and early life cognitive measures (e.g., years of education and college attainment) in the general population, demonstrating positive correlation with several psychiatric disorders (e.g., anorexia nervosa and bipolar disorder) and negative correlation with several neurological phenotypes (e.g., Alzheimer's disease and ischemic stroke), even though the latter are considered to result from specific processes that occur later in life. Extensive simulations were also performed to inform how statistical power, diagnostic misclassification, and phenotypic heterogeneity influence genetic correlations. CONCLUSION The high degree of genetic correlation among many of the psychiatric disorders adds further evidence that their current clinical boundaries do not reflect distinct underlying pathogenic processes, at least on the genetic level. This suggests a deeply interconnected nature for psychiatric disorders, in contrast to neurological disorders, and underscores the need to refine psychiatric diagnostics. Genetically informed analyses may provide important "scaffolding" to support such restructuring of psychiatric nosology, which likely requires incorporating many levels of information. By contrast, we find limited evidence for widespread common genetic risk sharing among neurological disorders or across neurological and psychiatric disorders. We show that both psychiatric and neurological disorders have robust correlations with cognitive and personality measures. Further study is needed to evaluate whether overlapping genetic contributions to psychiatric pathology may influence treatment choices. Ultimately, such developments may pave the way toward reduced heterogeneity and improved diagnosis and treatment of psychiatric disorders

    Shared heritability and functional enrichment across six solid cancers

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    Correction: Nature Communications 10 (2019): art. 4386 DOI: 10.1038/s41467-019-12095-8Quantifying the genetic correlation between cancers can provide important insights into the mechanisms driving cancer etiology. Using genome-wide association study summary statistics across six cancer types based on a total of 296,215 cases and 301,319 controls of European ancestry, here we estimate the pair-wise genetic correlations between breast, colorectal, head/neck, lung, ovary and prostate cancer, and between cancers and 38 other diseases. We observed statistically significant genetic correlations between lung and head/neck cancer (r(g) = 0.57, p = 4.6 x 10(-8)), breast and ovarian cancer (r(g) = 0.24, p = 7 x 10(-5)), breast and lung cancer (r(g) = 0.18, p = 1.5 x 10(-6)) and breast and colorectal cancer (r(g) = 0.15, p = 1.1 x 10(-4)). We also found that multiple cancers are genetically correlated with non-cancer traits including smoking, psychiatric diseases and metabolic characteristics. Functional enrichment analysis revealed a significant excess contribution of conserved and regulatory regions to cancer heritability. Our comprehensive analysis of cross-cancer heritability suggests that solid tumors arising across tissues share in part a common germline genetic basis.Peer reviewe

    Dissecting the Shared Genetic Architecture of Suicide Attempt, Psychiatric Disorders, and Known Risk Factors

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    Background Suicide is a leading cause of death worldwide, and nonfatal suicide attempts, which occur far more frequently, are a major source of disability and social and economic burden. Both have substantial genetic etiology, which is partially shared and partially distinct from that of related psychiatric disorders. Methods We conducted a genome-wide association study (GWAS) of 29,782 suicide attempt (SA) cases and 519,961 controls in the International Suicide Genetics Consortium (ISGC). The GWAS of SA was conditioned on psychiatric disorders using GWAS summary statistics via multitrait-based conditional and joint analysis, to remove genetic effects on SA mediated by psychiatric disorders. We investigated the shared and divergent genetic architectures of SA, psychiatric disorders, and other known risk factors. Results Two loci reached genome-wide significance for SA: the major histocompatibility complex and an intergenic locus on chromosome 7, the latter of which remained associated with SA after conditioning on psychiatric disorders and replicated in an independent cohort from the Million Veteran Program. This locus has been implicated in risk-taking behavior, smoking, and insomnia. SA showed strong genetic correlation with psychiatric disorders, particularly major depression, and also with smoking, pain, risk-taking behavior, sleep disturbances, lower educational attainment, reproductive traits, lower socioeconomic status, and poorer general health. After conditioning on psychiatric disorders, the genetic correlations between SA and psychiatric disorders decreased, whereas those with nonpsychiatric traits remained largely unchanged. Conclusions Our results identify a risk locus that contributes more strongly to SA than other phenotypes and suggest a shared underlying biology between SA and known risk factors that is not mediated by psychiatric disorders.Peer reviewe
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